Express sin theta in terms of sec theta. Share with your friends Share 4 Varun.Rawat answered this We know that,sin^{2 }θ = 1 - cos^{2 }θ 21 View Full Answer Shweta Vijay answered this Sin^2 theta = 1 - Cos^2 thetaso, sin theta = root of cos^2 thetaand since cos^2 theta = 1 / sec^2 thetaSin theta = root of 1 - 1/sec^2 theta. 3