Question

Last Problem in Proving Identities:
Thanks.
2tanx/(1-tan^2x)+1/(2cos^2x-1) = cosx+sinx/(cosx-sinx) ?
How?

Answer 1

\[\frac{ 2tanx }{(1-\tan^2x)} + \frac{ 1 }{ 2\cos^2x-1 }\]

Answer 2

this is ur LHS??

Answer 3

LHS? what's that? sorry don't know LHS

Answer 4

I MEAN THE LEFT HAND SIDE EQUATION OF THAT EQUAL TO SIGN

Answer 5

y-yes sir/ma'am.