Question

Help in Proving Identities:
2tanx/(1-tan^2x)+1/(2cos^2x-1) = cosx+sinx/(cosx-sinx) ?
how ?

Answer 1

Input question properly.

Answer 2

that's the given.

Answer 3

Can you draw the problem or use later.

Answer 4

um i'll try new here in openstudy

Answer 5

Okay, use the draw the button.

Answer 6

\[\frac{ 2tanx }{ 1-\tan ^{2} x}+\frac{ 1 }{ 2\cos ^{2} x-1}=\frac{ cosx+sinx }{ cosx-sinx}\]

Answer 7

sorry I took a long time doing it.

Answer 8

how?

Answer 9

Much better.
Hold on.

Answer 10

ok.