Write the correct option and also provide the method Share with your friends Share 0 Rahul Chaudhary answered this 3 View Full Answer Trideb answered this For finding y=tanx+cos^x You have to find d/dx of tanx and d/dx of cos^x Therfore d/dx of tanx=sec^x And d/dx of cos^x=sin2x Therefore according to your question your answer can be Sec^x +sin2x . Thank you -1