Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Question #ba55e

1 Answer

Dec 18, 2016

#LHS=(sin2x)/(secx+1)*(sec2x)/(sec2x+1)#

#=(sin2x)/(secx+1)*(sec2x*cos2x)/(cos2x(sec2x+1))#

#=(2sinxcosx)/(secx+1)*1/(1+cos2x)#

#=(2sinxcosx)/(secx+1)*1/(2cos^2x)#

#=tanx/(secx+1)!=RHS#

Related questions

See all questions in Proving Identities

Impact of this question

998 views around the world

You can reuse this answer
Creative Commons License