1.

17 10620, lly-x siny, prov e that(x-dr),, (dosy)- x cosdyy

Answer»

This is an trigonometric function which is in the form ofu.v.

So todifferentiatethis function, you need to know the differentiation ofu.vfunction.

Thus,d/dx(u.v)=u.dv/dx+v.du/dx

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