verify the identity:

Question

tan^2x(1+cot^2x)=1/1-sin^2x

Verify the Id:
tanx + cotx/ tanx-cotx = (1/sin^2x-cos^2x)

Answer 1

(s^2/c^2)( 1+ c^2/s^2) = ? 1/(1-s^2)

s^2/c^2 + 1 = ? 1/(c^2)

(s^2+c^2)/c^2 = = ? 1/(c^2)

1/c^2 = 1/c^2

Answer 2

tanx + cotx/ tanx-cotx = (1/sin^2x-cos^2x)

I can not tell what the numerators and denominators are.