If sec theta-tan theta = root 2 * tan theta, then show that sec theta + tan theta= root 2 sec theta Share with your friends Share 16 Anuradha Sharma answered this We know that sec2θ-tan2θ= 1So secθ+tanθ= 1secθ-tanθ=12tanθ=22cotθSo please recheck the RHS., -59 View Full Answer