Question

cosA/1+sinA=1-sinA/cosA

Answer 1

hope this helps to u....
if you get ur right answer and like my ans then plzzz mark as brainlist

Answer 2

LHS = cosA  / 1+sinA
        = cosA (1-sinA)  / (1+sinA)(1-sinA) 
        = cosA (1-sinA)  /  1-sin^2A
        = cosA (1-sinA)  /  cos^2A
        = 1-sinA /cosA
RHS = 1-sinA / cosA
                             LHS = RHS