Question

Cos3p/2 * cosa - sin3p/2 * sina

Answer 1

Объяснение:

не очень уверен, но думаю правильно

Answer 2

To simplify the expression you provided, let's break it down step by step:

cos(3π/2) = 0 sin(3π/2) = -1

Therefore, the expression becomes:

0 * cos(a) - (-1) * sin(a)

Simplifying further:

0 - (-1 * sin(a)) = sin(a)

So, the simplified expression is sin(a).