Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

How can I simplify sin2xcosx+cos2xsinx?

1 Answer

May 28, 2015

Use the identities: #sin 2x = 2sin x.cos x# and

#cos 2x = 2cos^2 x - 1#

#2sin x.cos^2 x + (2cos^2 x - 1)sin x #=

#=sin x(4cos^2 x - 1) = sin x.(2cos x - 1)(2cos x + 1)#

Related questions

Impact of this question

11360 views around the world

You can reuse this answer
Creative Commons License