Use the sum-to-product identities to rewrite the expression. sin 5a + sin 2a Choose the correct answer below. O A. 2 sin (7) cos (3a) O B. -2 sin 7a 3a Cos 2 2 С. 2 sin 7a sin 2 3a 2 OD. 7a 2 sin 3a cos 2

Q: Rewrite expression as a sum or difference. This one i had a hard time answering! 6 sin 5x cos 2x

A: Given expression is  We will use the following identity to express the given expression as a sum or…

Q: Which of the following is equivalent to 2 cos(3x) cos(5x)? Select an answer and submit. For keyboard…

A: We have the formula,  Cos(A+B) + Cos(A-B) = 2 CosA CosB------(1) Now given that, 2Cos(3x) Cos(5x)…

Q: 2. f"(x)=3sin x, f'(0)=1, and f (0)=10. Determine f(x).

A:

Q: Use the sum-to-product formulas to rewrite the sum or difference as a product. cos x + cos 2x

A: Here we want to write the given sum as a product using sum to product formula.

Q: Which the following is the simplified expression of 1- sin² x a b C d cot²x -cot²x tan²x -tan²x

A: We have given an expression to simplify  Let, y=1-1sin2x y=1-csc2x y=-cot2x

Q: Simplify. (sina - cos a)² =? 01 - sin(2a) 01 - cos(2a) 01 01 + cos(2a)

A: we have given equation

Q: Which expression is the proper simplification of 2sin- :? 2 Select one: a. sin2x b. sinx c. sin4x d.…

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.