Q. 13.7( 30 Votes )

Differentiate each of the following w.r.t. x:

sin 4x

Answer :

Formulae :




Let,


y = sin 4x


and u = 4x


therefore, y = sin u


Differentiating above equation w.r.t. x,


…………. By chain rule



………….


= cos 4x . 4


= 4 cos 4x


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