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Question

Chose the correct answer.

The slope of the normal to the curve y=2x2+3sinx at x=0 is

(a) 3 (b) 13 (c)-3 (d)- 13

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Solution

The equation of the given curve is y=2x2+3 sin x

On differentiating w.r.t.x, we get

dydx=4x+3 cos x

Slope of the tangent to the given curve at x=0 is given by

dydx=4×0+3 cos 0=3

Slope of the normal to the given curve at x=0 is

1Slope of tangent=13.Hence, correct option is (d).


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