Prove the identity: cos ((pi)/2 - x)=sin x

nidantasnu

nidantasnu

Answered question

2022-07-13

Prove the identity:
cos ( π 2 x ) = sin x

Answer & Explanation

Miles Mueller

Miles Mueller

Beginner2022-07-14Added 11 answers

cos ( π 2 x ) = sin x
cos ( A ± B ) = cos A cos B ± sin A sin B
cos ( π 2 x ) = cos π 2 cos x + sin π 2 sin x
= 0 cos x + 1 sin x
= sin x
Jeffrey Jordon

Jeffrey Jordon

Expert2022-08-01Added 2605 answers

Answer is given below (on video)

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?