SOLUTION: Prove the identity: (tanx+1)^2=(1+2 sinx cosx)/(cos^2)x

SOLUTION: Prove the identity: (tanx+1)^2=(1+2 sinx cosx)/(cos^2)x

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Question 1131555: Prove the identity:
(tanx+1)^2=(1+2 sinx cosx)/(cos^2)x
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

start with:

=.......

=

=

=.......since , we have

=

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