Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Question #af485

1 Answer

Sep 18, 2016

LHS=RHS

Explanation:

LHS: #(sinx+2cosx)^2 = sin^2x+4cos^2x+4sinxcosx=(sin^2x+cos^2x)+3cos^2x+4sinxcosx=1+3cos^2x+4sinxcosx=3cos^2x+4sinxcosx+1#(proved)[Ans]

Related questions

See all questions in Solving Trigonometric Equations

Impact of this question

763 views around the world

You can reuse this answer
Creative Commons License