Question

tan(2x)=2tanx/1-tan²x​

Answer 1

Answer:

Using Formula:-

Tan(A+B)= TanA+TanB.

1-TanA.TanB

Now

tan2x

=. tan(x+x)

=. tanx+tanx

1-tanx.tanx

=. 2tanx. Proved.

1-tan²x