 Hi and welcome to the session I am Deepika here. Let's discuss the question, differentiate the following function with respect to x cos of sin x. So let's start the solution. Let y is equal to cos of sin x. Now we know that derivative of cos theta is equal to minus sin theta and derivative of sin theta is cos theta. Therefore dy by dx is equal to dy dx of cos of sin x. Now here we will apply the chain rule. Now we know that derivative of cos theta is minus sin theta and derivative of sin theta is cos theta. So this is equal to minus sin of sin x into dy dx of sin x. So this is equal to minus sin of sin x into cos x. Hence the answer for the above question is derivative of the given function is minus cos x sin of sin x. I hope the solution is clear to you. Bye and take care.