Question

Select the correct answer.

What is the expanded equivalent of cos(a - b)?
A
sin a cos b-cos a sin b
O
O
B.
sin a cos b + cos a sin b
O
C.
cos a cos b - sin a sin b
O
D.
cos a cos b+ sin a sin b
Reset

Answer 1

it is d

Explanation:

Answer 2

Cos A cos B + sin A sin B