Which of the following is a valid step in proving the identity 1/ sin theta - sin theta  = cos 2 theta / sec theta ?   a. Multiply both sides of the equation by sin thetab. Add sin theta to both sides of the equation.c. Multiply both sides of the equation by cos  2 theta d. Write the left side as  1/ sin theta  - sin 2 theta / sin theta

Q: Simplify the following expression. 1 csc 4 sc"(3)| cos sin

A: To simplify :-

Q: 6. Use the sum and difference identities to simplify the expression. '5T COS 12

A:

Q: Use the fact that 2(V6 + V2) cos- to find sin and cos 24 24

A: Given that the fact cos π12 = 146+2 To find the cos π24  and   sin π24

Q: Simplify the expression using Sum and Difference Identities. Cos 4x cos3x + sin 4x sin 3x %3D

A:

Q: C 32 40 В 24

A:

Q: Write the following expression in terms of sine and cosine, and simplify it. (The final expression…

A: We use Trigonometry identities

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A:

Q: determine which of the two values is greater.a. tan 1 or tan 2 b sin 1 or tan 1 c. cos 2 or sin 2

A: a) tan(1) or tan(2) :       We find exact values of tan(1) and  tan(2) on calculator,…

Q: Convert all of the terms to sines and cosines and simplify to find the expression that completes the…

A: Topic- trigonometry function

Q: Simplify. sin α + sin ẞ COS a cos B

A: The given expression is

Q: 7. Evaluate each expression. (a) sin? 120° + cos² 120°

A: Since there are multiple questions present and you have not specified which question to answer,…

Q: IT – sin 8. 2 Simplify cos - 8.

A: Given: (1)   cos2π8-sin2π8 (2)  2sin13∘ cos13∘

Q: If sinA=4/5 and cosB= -5/13, where A belongs to QI and B belongs to QIII, then find sin(A+B). How do…

A: Given that Where A in quadrant 1 and B in quadrant III

Q: 82 18 Riv 80

A: For a right triangle we know, cos(θ)=basehypotenuse

Q: II. Find the exact value of the following expression= 1. cos(26.5°) sin(-63.5°) – cos(-63.5°)…

A:

Q: C 32 40 В 24 A

A: Given query is to find cousins of the triangle.

Q: Write the following in terms of sin (theta) and cos (theta); then simplify if possible. (Leave your…

A: Consider the following expression:…

Q: 28 If cosa = 61 197 Find cos(a + B). Write your answer in fractional form. and cosß= where a and ß…

A:

Q: Simplify without using a calculator. Tan(31 degrees) - cos(59 degrees) / cos (31 degrees) =

A:

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.