Asked by Adrian
Prove the identity:
cos(x-π/2)=sin x
cos(x-π/2)=sin x
Answers
Answered by
Steve
recall that
cos(x-y) = cosxcosy+sinxsiny
hence the name cosine -- sine of complementary angle
cos(x-y) = cosxcosy+sinxsiny
hence the name cosine -- sine of complementary angle
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.