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OpenStudy (anonymous):
Last Problem in Proving Identities: Thanks. 2tanx/(1-tan^2x)+1/(2cos^2x-1) = cosx+sinx/(cosx-sinx) ? How?
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OpenStudy (anonymous):
\[\frac{ 2tanx }{(1-\tan^2x)} + \frac{ 1 }{ 2\cos^2x-1 }\]
OpenStudy (anonymous):
this is ur LHS??
OpenStudy (anonymous):
LHS? what's that? sorry don't know LHS
OpenStudy (anonymous):
I MEAN THE LEFT HAND SIDE EQUATION OF THAT EQUAL TO SIGN
OpenStudy (anonymous):
y-yes sir/ma'am.
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