Q. 13.7( 30 Votes )

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

sin 4x

Answer :

Formulae :


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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