Q.

Find dydx for y=2x+xx.

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a

-1x32+22x

b

-1x32+3x2

c

-2x32+32x

d

-1x32+32y

answer is B.

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Detailed Solution

dydx=ddx2x-12+x32⇒dydx=2-12x-12-1+32x32-1 ⇒dydx=-1x32+3x2
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