Let C be the curve y = x^(3) (where x ta...

Let C be the curve `y = x^(3)` (where x takes all real values). The tangent at A meets the curve again at B. If the gradient at B is K times the gradient at A, then K is equal to

A

4

B

2

C

-2

D

`(1)/(4)`

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The correct Answer is:

A

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