Q. 3

Differentiate with respect to .

Answer :


Given : Let u = and v = cos x


To differentiate : with respect to cos x


Formula used :


= - sinx


The CHAIN RULE states that the derivative of f(g(x)) is f’(g(x)).g’(x)


Let u = and v = cos x


Differentiating u with respect to x


= = .


Differentiating v with respect to x


=


=


=


= .


Ans.


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