If y = x sin x , then at x = \pi/2, \frac{dy}{dx} =

TS ICET 24 May 2019 Shift 1 Paper

Question : 135 of 200

Marks: +1, -0

If y = x sin x , then at x =

π/2, {dy}/{dx}

Solution:

y=x \sin x ⇒ \;{d y}/{d x}=x \cos x ∣+\sin x

(\;{d y}/{d x})_{x=\;{π}/{2}}=0+1=1

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