What is the sine of 60 degrees - The sine graph or sinusoidal graph is an up-down graph and repeats every 360 degrees i.e. at 2π. In the below-given diagram, it can be seen that from 0, the sine graph rises till +1 and then falls back till -1 from where it rises again. The function y = sin x is an odd function, because; sin (-x) = -sin x.

 
sin 60 degrees = √ (3)/2. The sin of 60 degrees is √ (3)/2, the same as sin of 60 degrees in radians. To obtain 60 degrees in radian multiply 60° by π / 180° = 1/3 π. …. Golden eagle lending legit

# What is inverse sine? Inverse sine is the inverse of basic sine function. In the sine function, value of angle θ is taken to give the ratio opposite/hypotenuse. However, inverse sine function takes the ratio opposite/hypotenuse and gives angle θ. sin-1 (opposite/hypotenuse) = θ Inverse sine symbol. Inverse sine is represented as sin-1 or ...Find an angle θ with 0∘ < θ < 360∘ that has the same: sine as 30°:∅= degrees cosine as 30°:∅= degrees The sine of a 30 degree angle is equal to the cosine of a _____ degree angle. 30 45 15 60The sine of 60 degrees is: 0.87. These examples show how to use the sin function in Python to calculate the sine of angles in degrees. More Articles : python beautifulsoup requests. Answered on: Friday 30 June, 2023 / Duration: 5-10 min read . Programming Language : Python, Popularity : 9/10.3 days ago · The calculator instantly tells you that sin (45°) = 0.70710678. It also gives the values of other trig functions, such as cos (45°) and tan (45°). First, select what parameters are known about the triangle. You can choose between " two sides ", " an angle and one side ", and " area and one side ". Apr 10, 2020 ... Comments2 ; Find the SIN (60 degrees) Without a CALCULATOR. TabletClass Math · 42K views ; The Exact Values for Sine, Cosine, and Tangent of 45 ...sin 30° = 0.5. sin 30 degrees = 0.5. The sin of 30 degrees is 0.5, the same as sin of 30 degrees in radians. To obtain 30 degrees in radian multiply 30° by π / 180° = 1/6 π. Sin 30degrees = sin (1/6 × π). Our results of sin30° have been rounded to five decimal places. If you want sine 30° with higher accuracy, then use the calculator ... Trigonometry Examples. Popular Problems. Trigonometry. Evaluate sin(60 degrees ) Step 1. The exact value of is . Step 2. The result can be shown in multiple forms ... Answer: sin (60°) = 0.8660254038. sin (60°) is exactly: √3/2. Note: angle unit is set to degrees. Use our sin (x) calculator to find the exact value of sine of 60 degrees - …The calculator instantly tells you that sin (45°) = 0.70710678. It also gives the values of other trig functions, such as cos (45°) and tan (45°). First, select what parameters are known about the triangle. You can choose between " two sides ", " an angle and one side ", and " area and one side ".Cosine function, along with sine and tangent, is one of the three most common trigonometric functions. In any right triangle, the cosine of an angle is the length of the adjacent side (A) divided by the length of the hypotenuse (H) What is vaue of Cosine 0°? = 1. What is vaue of Cosine 60°? = 0.5. What is vaue of Cosine 90°? = 0 Learn how to find the sine, cosine, and tangent of angles in right triangles. The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan). These are defined for acute angle A below: In these definitions, the terms opposite, adjacent, and ... Step 2: Look for 60 degrees reading on the inner scale. Mark a dot and name it Q. Step 3: Join O and Q. Thus, m∠POQ = 60 o. How to Construct a 60-Degree Angle Using a Ruler and Compass. Let us construct a 60-degree angle with the help of a ruler and a compass. Step 1: Using a ruler draw a line segment QR of any convenient length.The symptoms of zoster sine herpete include pain, numbness, tingling and itching, or constitutional symptoms, such as headache, chills, nausea and fever, according to the National ...Graduation season is upon us—and that means approximately 700,000 U.S. students will be receiving master's degrees and another 150,000 or so will be getting their doctorates. For s...Then, Let us know all the trigonometric ratios of sine 0 o, 30 o, 45 o, 60 o and 90 o. Sin 0o = 0. Sin 30o = 1/2. Sin 45o = 1/√2. Sin 60o = √3/2. Sin 90o= 1. We can simply memorize the trigonometric ratios of cosine by writing the values of …Dec 7, 2017 ... Use the identity sin(A+B)=sin(A)cos(B)+cos(A)sin(B) . The values for the sine and cosine of 60∘ and 45∘ are well known; ...Use this simple sine calculator to calculate the sine value for 60° in radians / degrees. The Trignometric Table of sin, cos, tan, cosec, sec, cot is useful to learn the common angles of trigonometrical ratios from 0° to 360°. Select degrees or radians in the drop down box and calculate the exact sine 60° value easily. α sin (α)Question: Part C- Find the phasor transform of a sinusoidal source defined using the sine function What is the phasor transform of a current source described as i (t) 300sin (500t +60) mA? Express your answer as a complex number in polar form. The phase angle will be considered to be in degrees. Express your answer using three significant figures.Online degree programs are becoming increasingly popular for those looking to further their education without having to attend a traditional college or university. With so many onl...2 days ago · 270° to 360° — fourth quadrant. In this case, 250° lies in the third quadrant. Choose the proper formula for calculating the reference angle: 0° to 90°: reference angle = angle, 90° to 180°: reference angle = 180° − angle, 180° to 270°: reference angle = angle − 180°, 270° to 360°: reference angle = 360° − angle. Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.Therefore, Sin 30 degree equals to the fractional value of 1/ 2. Sin 30° = 1 / 2. Therefore, sin 30 value is 1/2. In the same way, we can derive other values of sin degrees like 0°, 30°, 45°, 60°, 90°,180°, 270° and 360°. Below is the trigonometry table, which defines all the values of sine along with other trigonometric ratios.Jan 18, 2024 · As the arcsine is the inverse of the sine function, finding arcsin(1/2) is equivalent to finding an angle whose sine equals 1/2. On the unit circle, the values of sine are the y-coordinates of the points on the circle. Inspecting the unit circle, we see that the y-coordinate equals 1/2 for the angle π/6, i.e., 30°. Answer: Sine 60°= √3/2 =1.732/2. 0.8660. Step-by-step explanation: In mathematics, the sine is a trigonometric function of an angle. The sine of an acute angle is defined in the context of a right triangle: for the specified angle, it is the ratio of the length of the side that is opposite that angle to the length of the longest side of the triangle (the …For sin 70 degrees, the angle 70° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 70° value = 0.9396926. . . ⇒ sin 70° = sin 430° = sin 790°, and so on. Note: Since, sine is an odd function, the value of sin (-70°) = -sin (70°).For sin 80 degrees, the angle 80° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 80° value = 0.9848077. . . ⇒ sin 80° = sin 440° = sin 800°, and so on. Note: Since, sine is an odd function, the value of sin (-80°) = -sin (80°).Sep 26, 2010 ... Tutorial on trigonometric ratios for positive multiples of 30, 45 and 60 degrees YOUTUBE CHANNEL at https://www.youtube.com/ExamSolutions ...Learn how to find the sine, cosine, and tangent of angles in right triangles. The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan). These are defined for acute angle A below: In these definitions, the terms opposite, adjacent, and ...For sin 360 degrees, the angle 360° lies on the positive x-axis. Thus, sin 360° value = 0. Since the sine function is a periodic function, we can represent sin 360° as, sin 360 degrees = sin (360° + n × 360°), n ∈ Z. ⇒ sin 360° = sin 720° = sin 1080°, and so on. Note: Since, sine is an odd function, the value of sin (-360°) = -sin ...Therefore, Sin 30 degree equals to the fractional value of 1/ 2. Sin 30° = 1 / 2. Therefore, sin 30 value is 1/2. In the same way, we can derive other values of sin degrees like 0°, 30°, 45°, 60°, 90°,180°, 270° and 360°. Below is the trigonometry table, which defines all the values of sine along with other trigonometric ratios. The sine of 60 degrees, denoted as sin 60°, is equal to 0.866025404. The sum of sine squared plus cosine squared is 1. While the sine is calculated by dividing the length of the side opposite the acute angle by the hypotenuse, the cosine is calculat...For sin 42 degrees, the angle 42° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 42° value = 0.6691306. . . ⇒ sin 42° = sin 402° = sin 762°, and so on. Note: Since, sine is an odd function, the value of sin (-42°) = -sin (42°).Online degree programs are becoming increasingly popular for those looking to further their education without having to attend a traditional college or university. With so many onl...Sine of angle. Our sine of angle calculator makes it easy for you to find the sine of any angle. Simply enter the angle value into the calculator choose the between degrees or radians, and it will automatically calculate the sine of the angle for you. This tool is perfect for students, teachers, and anyone else who needs to calculate the sine ...The symptoms of zoster sine herpete include pain, numbness, tingling and itching, or constitutional symptoms, such as headache, chills, nausea and fever, according to the National ...Free trigonometric identity calculator - verify trigonometric identities step-by-stepThere’s a school of thought in the United States that says the only practical path through higher education is to earn a degree that immediately makes money. Or, at least, one that...sin510° = 0.5. sin 510° = 0.5. sin 510 degrees = 0.5. The sin of 510 degrees is 0.5, the same as sin of 510 degrees in radians. To obtain 510 degrees in radian multiply 510° by π / 180° = 17/6 π. Sin 510degrees = sin (17/6 × π). Our results of sin510° have been rounded to five decimal places. If you want sine 510° with higher accuracy ...sin 30° = 0.5. sin 30 degrees = 0.5. The sin of 30 degrees is 0.5, the same as sin of 30 degrees in radians. To obtain 30 degrees in radian multiply 30° by π / 180° = 1/6 π. Sin 30degrees = sin (1/6 × π). Our results of sin30° have been rounded to five decimal places. If you want sine 30° with higher accuracy, then use the calculator ...Step 1: Enter the values of any two angles and any one side of a triangle below which you want to solve for remaining angle and sides. Triangle calculator finds the values of remaining sides and angles by using Sine Law. Sine law states that. a sinA = b sinB = c sinC a sin A = b sin B = c sin C. Cosine law states that-.sin(60^@) = sqrt(3)/2color(white)("XX")csc(60^@) = 2/sqrt(3) cos(60^@) = 1/2color(white)("XXXX")sec(60^@) = 2 tan(60^@) = sqrt(3)color(white)("XXX")cot(60^@)=1/sqrt(3) Use the basic trigonometric definitions and the diagram below. Note: only the left half triangle is directly relevant; both sides combine to form an equilateral triangle from which (with the help of the Pythagorean Theorem) the ...To convert degrees to radians, multiply by π 180° π 180 °, since a full circle is 360° 360 ° or 2π 2 π radians. The exact value of sin(60) sin ( 60) is √3 2 3 2. Multiply √3 2 ⋅ π 180 3 2 ⋅ π 180. Tap for more steps... Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework ... Sin 60 Degrees. Before we dive into the calculations and methods, let’s start with the basics. Sin 60 degrees is the value of the sine function at an angle of 60 degrees in a right triangle. It represents the ratio of the length of the side opposite the 60-degree angle to the length of the hypotenuse (the longest side) in the triangle. Note: To find the sine of degrees, it must first be converted into radians with the math.radians() method (see example below). Syntax. math.sin(x) Parameter Values. Parameter Description; x: Required. The number to find the sine of. If the value is not a number, it returns a TypeError:Answer: sin (70°) = 0.9396926208. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 70 degrees - sin (70 °) - or the sine of any angle in degrees and in radians.sin 60 degrees = √ (3)/2. The sin of 60 degrees is √ (3)/2, the same as sin of 60 degrees in radians. To obtain 60 degrees in radian multiply 60° by π / 180° = 1/3 π. …Trigonometry. Find the Exact Value sin(120) Step 1. Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Step 2.The sine of 60 degrees, denoted as sin 60°, is equal to 0.866025404. To calculate the sine of an angle, you can use a scientific calculator or refer to a trigonometric table. However, …This cosine calculator is a twin tool to our sine calculator – add to them the tangent calculator, and you'll have a pack of the most popular trigonometric functions.Simply type the angle – in degrees or radians – and you'll find the cosine value instantly. Read on to understand what is a cosine and to find the cosine definition, as well as a neat table …The value of sine sixty degrees is an irrational number and its value is written in decimal form as follows. sin. ( 60 °) = 0.8660254037 ⋯. sin. ( 60 °) ≈ 0.866. In mathematics, the …sin75∘ = sin 5π 12 = 6–√ + 2–√ 4 sin. ⁡. 75 ∘ = sin. ⁡. 5 π 12 = 6 + 2 4. where sin sin denotes the sine function .sin(90° + 60°) = sin 150° sin(90° - 60°) = sin 30° Cos 60 Degrees Using Unit Circle. To find the value of cos 60 degrees using the unit circle: Rotate ‘r’ anticlockwise to form 60° angle with the positive x-axis. The cos of 60 degrees equals the x-coordinate(0.5) of the point of intersection (0.5, 0.866) of unit circle and r.B. When would two sine functions of the form y = sin (x - h) that have different values for h have the same graph? Explain. Whenever their h values differ by a multiple of the period of the sine function. Since sine has period 2pi, it would happen when the values differ by a multiple of 2pi. Changes in Period and Phase Shift of Sine and Cosine ... Explanation: For sin 47 degrees, the angle 47° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 47° value = 0.7313537. . . ⇒ sin 47° = sin 407° = sin 767°, and so on. Note: Since, sine is an odd function, the value of sin (-47°) = -sin (47°). Calculate the sine, cosine, and tangent of 30 and 60 degrees CCSS.MATH.CONTENT.HSF.TF.A.3 (+) Use special triangles to determine geometrically the values of sine, cosine, tangent for π/3, π/4 and π/6, and use the unit circle to express the values of sine, cosine, and tangent for x , π + x , and 2π – x in terms of their values …Simplify sin(60)+sin(30) Step 1. The exact value of is . Step 2. The exact value of is . Step 3. The result can be shown in multiple forms. Exact Form: Decimal Form: ...The exact value of sin(60°) sin ( 60 °) is √3 2 3 2. √3 2 3 2. The result can be shown in multiple forms. Exact Form: √3 2 3 2. Decimal Form: 0.86602540… 0.86602540 …. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.May 4, 2023 ... In fractional form, its exact value of cos 60 degree is 12. Cos 60 Degrees in Radians. Cos 60 degree in radians is represented as. = (60 ...So a negative angle is one that starts in a clockwise direction. 60 is the angle 60 degrees above the x-axis so -60 is the angle 60 degrees below the x-axis. Angle measures are considered cyclic and any angle x x is equal to x ± 360 x ± 360. So −60 − 60 is the same thing as 300 300. In particular 180 = -180. Also convenient are -90 = 270.Arcsine is an inverse of the sine function. In other words, it helps to find the angle of a triangle that has a known value of sine: arcsin (x) = y iff x = sin (y) As sine's codomain for real numbers is [−1, 1] , we can only calculate arcsine for numbers in that interval. This means that the domain of arcsin (for real results) is -1 ≤ x ≤ 1.The area of an equilateral triangle can be written as a squared sine (60 degrees).Option D is correct. What is an equilateral triangle? The triangle in which all three sides are of the same length.In this the all angles are the same 60°.. The area of a triangle can be calculated by,.....1. Where, A - Area of triangle . b - baseTrigonometry is a branch of mathematics concerned with relationships between angles and side lengths of triangles. In particular, the trigonometric functions relate the angles of a right triangle with ratios of its side lengths. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical ...Tan 60° = AD/BD = √3 / 1 = √3. We can also write the value of cos 60 degrees in decimal form as: cos 60° = 1/2 = 0.5. Also, we can write the values of sine, cosine and tangent with respect to all the degrees in a table. Let us draw a table with respect to degrees and radians for sine, cosine and tangent functions. Explanation: For sin 120 degrees, the angle 120° lies between 90° and 180° (Second Quadrant ). Since sine function is positive in the second quadrant, thus sin 120° value = √3/2 or 0.8660254. . . ⇒ sin 120° = sin 480° = sin 840°, and so on. Note: Since, sine is an odd function, the value of sin (-120°) = -sin (120°). The sine formula is: sin (α) = opposite hypotenuse = a c. Thus, the sine of angle α in a right triangle is equal to the opposite side’s length divided by the hypotenuse. To find the ratio of sine, simply enter the length of the opposite and hypotenuse and simplify. For example, let’s calculate the sine of angle α in a triangle with the ...Make the expression negative because sine is negative in the fourth quadrant. Step 2. The exact value of is . Step 3. The result can be shown in multiple forms. Exact ...The calculator instantly tells you that sin (45°) = 0.70710678. It also gives the values of other trig functions, such as cos (45°) and tan (45°). First, select what parameters are known about the triangle. You can choose between " two sides ", " an angle and one side ", and " area and one side ".There’s a school of thought in the United States that says the only practical path through higher education is to earn a degree that immediately makes money. Or, at least, one that...Question: Part C- Find the phasor transform of a sinusoidal source defined using the sine function What is the phasor transform of a current source described as i (t) 300sin (500t +60) mA? Express your answer as a complex number in polar form. The phase angle will be considered to be in degrees. Express your answer using three significant figures.To find the value of sin 405 degrees using the unit circle, represent 405° in the form (1 × 360°) + 45° [∵ 405°>360°] ∵ sine is a periodic function, sin 405° = sin 45°. Rotate ‘r’ anticlockwise to form a 45° or 405° angle with the positive x-axis. To find the value of sin 405 degrees using the unit circle, represent 405° in the form (1 × 360°) + 45° [∵ 405°>360°] ∵ sine is a periodic function, sin 405° = sin 45°. Rotate ‘r’ anticlockwise to form a 45° or 405° angle with the positive x-axis. For sin 42 degrees, the angle 42° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 42° value = 0.6691306. . . ⇒ sin 42° = sin 402° = sin 762°, and so on. Note: Since, sine is an odd function, the value of sin (-42°) = -sin (42°).The Trignometric Table of sin, cos, tan, cosec, sec, cot is useful to learn the common angles of trigonometrical ratios from 0° to 360°. Select degrees or radians in the drop down box …The important angles of trigonometry are 0°, 30°, 45°, 60°, 90°. These are the standard angles of trigonometric ratios, such as sin, cos, tan, sec, cosec, and cot. Each of these angles has different values with different trig functions. Table of Contents: The two rays that have the same beginning point that forms the figure called an angle.May 4, 2023 ... In fractional form, its exact value of cos 60 degree is 12. Cos 60 Degrees in Radians. Cos 60 degree in radians is represented as. = (60 ...Answer: 34.7 degrees. Measure the angle of incidence - the angle between the normal and incident ray. It is approximately 60 degrees. List known Values: n i =1.00 n r =1.52. Theta i = 60 degrees. List Unknown: Find theta r. Substitute into Snell's law equation and perform the necessary algebraic operations to solve:sin 120° = √ (3)/2. sin 120 degrees = √ (3)/2. The sin of 120 degrees is √ (3)/2, the same as sin of 120 degrees in radians. To obtain 120 degrees in radian multiply 120° by π / 180° = 2/3 π. Sin 120degrees = sin (2/3 × π). Our results of sin120° have been rounded to five decimal places. If you want sine 120° with higher accuracy ...30° and 60° The values of sine and cosine of 30 and 60 degrees are derived by analysis of the equilateral triangle. In an equilateral triangle, the 3 angles are equal and sum to 180°, therefore each corner angle is 60°. Bisecting one corner, the special right triangle with angles 30-60-90 is obtained.As you can see from the above screenshot, the SIN function in Excel expects a number as an input. This number usually represents a value in radians. So, in this case, we will write “=SIN (1.0472)”, where 1.0472 is the radians equivalent of 60 degrees. Once we do this, we will get the SIN value of 60 degrees.

Answer: sin (105°) = 0.9659258263. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 105 degrees - sin (105 °) - or the sine of any angle in degrees and in radians.. White circle pill an 627

what is the sine of 60 degrees

This video works to determine the exact value for the sine of 36 degrees algebraically by setting x=36, writing an equation, and solving for sin(x).For more ...Answer: sin (10°) = 0.1736481777. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 10 degrees - sin (10 °) - or the sine of any angle in degrees and in radians.For sin 80 degrees, the angle 80° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 80° value = 0.9848077. . . ⇒ sin 80° = sin 440° = sin 800°, and so on. Note: Since, sine is an odd function, the value of sin (-80°) = -sin (80°).How do you find the 6 trigonometric functions for 60 degrees? How do you find the 6 trigonometric functions for -45 degrees? ... What is the sine, cosine, & tangent of 270 degrees? How do you find the exact value of sin 105 degrees? How do evaluate sin 270 + …Dec 21, 2015 ... Check out - www.risingpearl.com Like at - www.facebook.com/risingpearlfans Hi Friends, This is the nineth webisode of this series where we ...Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below. Solution for Find an angle 0 with 0° < 0 < 360° that has the same: Sine function value as 220° 8 - degrees Cosine …For sin 80 degrees, the angle 80° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 80° value = 0.9848077. . . ⇒ sin 80° = sin 440° = sin 800°, and so on. Note: Since, sine is an odd function, the value of sin (-80°) = -sin (80°).Dec 21, 2015 ... Check out - www.risingpearl.com Like at - www.facebook.com/risingpearlfans Hi Friends, This is the nineth webisode of this series where we ...Exact values of sin(60), cos(60), tan(60), csc(60), sec(60), cot(60), Find exact values of all trigonometric functions when the angle is 60 degrees,Check out...For sin 42 degrees, the angle 42° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 42° value = 0.6691306. . . ⇒ sin 42° = sin 402° = sin 762°, and so on. Note: Since, sine is an odd function, the value of sin (-42°) = -sin (42°).Worksheet (pdf) Clicking ‘yes’ will take you out of the classroom and to our dedicated area for teachers to access our resources. The sine and cosine ratios for 30 and 60 degrees. In this lesson, we will learn how to find …Jan 18, 2024 · The sine of theta (sin θ) is the hypotenuse's vertical projection (green line); and; The cosine of theta (cos θ) is the hypotenuse's horizontal projection (blue line). We can rotate the radial line through the four quadrants and obtain the values of the trig functions from 0 to 360 degrees, as in the diagram below: In today’s competitive job market, having a degree can make a significant difference in your career prospects. However, with so many different types of degrees available, it can be...The Trignometric Table of sin, cos, tan, cosec, sec, cot is useful to learn the common angles of trigonometrical ratios from 0° to 360°. Select degrees or radians in the drop down box …Jan 26, 2024 · Surprisingly enough, this is enough data to fully solve the right triangle! Follow these steps: Calculate the third angle: β = 90 ° − α. \beta = 90\degree - \alpha β = 90°− α. Calculate the sine of. α. \alpha α and use its value to find the length of the opposite cathetus: sin ⁡ ( α) = 0.61567. Trigonometry. Evaluate Using the Given Value theta=60 degrees. θ = 60° θ = 60 °. The result can be shown in multiple forms. Exact Form: θ = 60° θ = 60 °. Decimal Form: θ = 60 θ = 60. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just ....

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