14.  Find the derivative of the following functions (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers): \sin ( x + a )

Answers (1)

Given,

f(x)=\sin ( x + a )

Now, As we know the chain rule of derivative,

[f(g(x))]'=f'(g(x))\times g'(x)

Applying this property we get,

f'(x)=\cos ( x + a )\times 1

f'(x)=\cos ( x + a )

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