Write the expression as the sine, cosine, or tangent of an angle. tan(t/20) + tan(37/5) 1 - tan(7/20) tan(37/5)

Q: Write the following expression as the sine, cosine, or tangent of a double angle. Then find the…

A: Given expression: 2 cos2 π8-1   Double angle identity of cosine: cos 2θ=2 cos2 θ-1

Q: Which of the following terms is best described as the positive side of the x-axis when an angle is…

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Q: Use the Law of Sines to find the indicated side x. (Assume a = 13. Round your answer to one decimal…

A: Given that , ∠A=37.5°∠B=28.10° and we assume a=13Since , total angle of a triangle is 180°then ,…

Q: 19. In the right triangle below, find sin A.

A: Given To evaluate sin A

Q: Write the first expression in terms of the second if the terminal point determined by t is in the…

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Q: Write the expression in terms of sine and cosine, and then simplify so that no quotients appear in…

A: Given that: -cos2θ(1-sec2θ)

Q: Rewrite the expression as a function of a positive acute angle (in degrees). DO NOT EVALUATE. (a)…

A:

Q: Use the Law of Sines to find the indicated side x. (Assume a = 11. Round your answer to one decimal…

A: From the given figure, Angle C can be obtained as follows. C=180°-A-B=180°-37.5°-28.1°=114.4° Now we…

Q: Write the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of…

A: we have to find the exact value of expression,cos2 15o - sin2 15o

Q: Write the expression as the sine, cosine, or tangent of an angle. sin 3x cos x - cos 3x sin x

A: Given,          sin3xcosx-cos3xsinxWe know that,        sinA-B=sinAcosB-cosAsinB

Q: Rewrite the expression as a function of a positive acute angle (in degrees). DO NO EVALUATE (a) tan…

A: Concept used: Trigonometric reduction formula: tan270°+α=-cot α sin360°-α=-sin α (a) Calculation:…

Q: Find the exact value of the expression  sin 165

A: In this question we will use basic of calculus i.e use of trigonometric formulas.  We will use the…

Q: I don't even know where to start Help!!

A: Consider the trigonometric identity in terms of sin t and cos t.Then simplify the identity to…

Q: -1 Simplify the expression sin (tan(3 )), where the angle is measured in radians.

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Q: What is the value sine? 13 12

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Q: Write the trigonometric expression in terms of sine and cosine, and then simplify. cos(0) – sec(0)…

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Q: Let sin t = a, cos t=b, and tant=c. Write the expression in terms of a, b, and c. 13 cos (-t)- cost…

A: We have to solve

Q: Write the first expression in terms of the second if the terminal point determined by t is in the…

A:

Q: Let sint=a, cost=b, and tan t= c. Write the following expression in terms of a, b, and c. 10 tan…

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Q: Evaluate the sine, cosine, and tangent of each angle. Do not use a calculator. (If an answer is…

A: To find the given sine, cosine and tangent values.

Q: In the figure, find the value of the sine of A and the value for the sine of B b a h A D The sine of…

A: Here, no values of segments are given. So, the answer is in the form of line segments.

Q: Evaluate (if possible) the sine, cosine, and tangent at the real number t. (If an answer is…

A: The given angle is

Q: Write in terms of sine and cosine and simplify the expression. cos A - 2 sin A cos A cos² A - sin² A…

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Q: Simplify and write the trigonometric expression in terms of sine and cosine: cos u sec u f(u) tan u…

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Q: Use words to describe the formula for:the power-reducing formula for the sine squared of an angle.

A: Here to describe the formula for "the power-reducing formula for the sine squared of an angle". That…

Q: Let sin t = a, cos t=b, and tant=c. Write the expression in terms of a, b, and c. 12 cos (-t)- cost…

A: Trigonometric functions:- The trigonometric functions are real functions that relate an angle of a…

Q: pole rope to A tan(x) = 3. tan 4 3/4 3.

A: to find the value of x.

Q: The hypotenuse of a right triangle is 25 inches. The sine of one of the acute angles is Which…

A: The hypotenuse of a right triangle is 25 inches.The sine of one of the acute angles is 2425

Q: Write the expression as sin, cosine, or tangent of an angle cos( 5pi/7)…

A: Consider to given trigonometric expression, cos5π7cos2π5-sin5π7sin2π5 Use the trigonometric…

Q: Solve the triangle. For the sides, give an expression for the exact value of the length in terms of…

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Q: Simplify. sin?e + sing csce cos?e tane 2 1

A: The given problem is solved below in detail.

Q: Simplify and write the trigonometric expression in terms of sine and cosine: COs u sec U f(u) tan u…

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Q: Write the first expression in terms of the second if the terminal point determined by t is in the…

A: tant & t lies in quadrant III.

Q: Write both the sum and the difference formulas for sine.

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Q: 5 Determine which of the two acute angles has a sine of 11 A 4/6 B 5 C 5 11 sin

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Q: Use the Law of Sines to find the indicated side x. (Assume a = 15. Round your answer to one decimal…

A:

Q: The sine of ois ; and the cosine of a is -. Which is the cotangent 2 of o ? 2 2 в 3 D -3

A: Given that:

Q: Perform here the preliminaries to perform (a) sin40 (a) sine 8cos30 – 4cose

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Q: Write the expression as the sine, cosine, or tangent of an angle.…

A: Given query is to rewrite the expression.

Q: Which of the following is an INCORRECT statement? a, sine and secO are both positive in the fourth…

A: We know that In 1st quadrant all trigonometric functions are positive   In 2nd quadrant sin and…

Q: Solve the trigonometric identity: sin4x = 2sin2xcos2x.

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Q: Find the sine of ZC. 24 10 26 C Simplify your answer and write it as a proper fraction, improper…

A: Here the triangle CDE is right angled triangle with angle E is 90° Given that CD=26,EC=10,DE=24

Q: Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the…

A: The given expression is  (1 + cotθ)(1 - cotθ) - csc2θ

Q: Evaluate the expression without using a calculator, and write your answer in radians. arccos ( -…

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Q: Evaluate sin? dr. Show the work.

A:

Q: An airplane began its descent when it was 0.8 mile above the ground and 10 miles away from an…

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Q: 2) A 35 28 21 B What is the Sine C of the triangle above?

A: It is given that CB=21,AB=28,AC=35. Recall the fact that sinθ=opposite sidehypotenuese.

Q: Use the Law of Sines to find the indicated side x. (Assume a = 155. Round your answer to one decimal…

A: Here a=155we find the side x

Q: Write the trigonometric expression in terms of sine and cosine, and then simplify. 5 cos(t) tan(t)

A:

Q: Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the…

A: The given expression is,

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.