Find the derivative w.r.t x Share with your friends Share 0 Saksham Tolani answered this Dear Student, put x2=cos 2θ=cos-11-cos 2θ2=cos-12sin2θ2=cos-1(cos (π2-θ))=π2-θy=π2-12cos-1x2dydx=-12×-11-x4×2xdydx=x1-x4 Regards! 0 View Full Answer