Question

prove that tan thitha/1-cot thitha + cot thitha/1-tan thitha =1+tan thitha+cot thitha

Answer 1

-—-—----—- sec(theta) = 1 / cos(theta) = c / b. tan(theta) = sin(theta) / cos(theta) = a / b. cot( theta) = 1/ tan(theta) = b / a. sin(-x) = -sin(x).