Wednesday
September 2, 2015

Homework Help: Calculus

Posted by sh on Saturday, February 27, 2010 at 11:22pm.

Solve identity,
(1-sin2x)/cos2x = cos2x/(1+sin2x)

I tried starting from the right side,
RS:
=(cos²x-sin²x)/(1+2sinxcosx)
=(cos²x-(1-cos²x))/(1+2sinxcosx)

and the right side just goes in circle. May I get a hint to start off?

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