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The equation of the normal to the curve ...

The equation of the normal to the curve `y = x^(3) " at" (1, 1)` is

A

`3x + y - 4= 0`

B

`3x + y = 4`

C

`x - 3y -4 = 0`

D

`x + 3y -4 = 0`

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The correct Answer is:
D
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