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The equation of the tangent to the curve

y=x2x3dt1+t2  at x=1 is

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a
2y+1=x
b
3x+1=y
c
3x+1+3=y
d
none of these

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detailed solution

Correct option is D

dydx=11+t2t=x3ddxx3−11+t2t=x2ddxx2=3x21+x6−2x1+x4dydxx=1=12Also y(1)=0.So the equation of tangent is y−0=12(x−1)


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