Answer :

Formulae :







Given,



Put x = tan a


Therefore, …………… eq (1)



y = sin (cos 2a) ………….


Differentiating above equation w.r.t. a ,



………….


………….



………….


But, x = tan a



…………………….. eq (2)


Now,


………… By chain rule


…………….. from eq (1) & eq (2)


…..…….


…..…….



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses