Asked by jhon
cotx+tan2x=cotxsec2x
prove
prove
Answers
Answered by
Steve
cosx/sinx + 2sinxcosx/cos2x
= (cosxcos2x + 2sin^2(x) cosx)/(sinxcos2x)
= cotxsec2x (cos2x + 2sin^2(x))
= cotx sec2x (1-2sin^2(x) + 2sin^2(x))
= cotx sec2x
= (cosxcos2x + 2sin^2(x) cosx)/(sinxcos2x)
= cotxsec2x (cos2x + 2sin^2(x))
= cotx sec2x (1-2sin^2(x) + 2sin^2(x))
= cotx sec2x
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.