(1/tg x)*(1/cos^2 x)

Question

(1/tg x)*(1/cos^2 x)

Answer 1

(1/tg x)*(1/cos² x)= (1/tg x)*(tg²x +1)=(tg²x +1)/tgx = tg²x/tgx +1/tgx = tgx+ctgx