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The point(s) on the curve y^(3)+3x^(2)=1...

The point(s) on the curve `y^(3)+3x^(2)=12y`, where the tangent is vertical, is (are) :

A

`(sqrt2, sqrt128)`

B

`(sqrt128, sqrt2)`

C

`(2, sqrt128)`

D

`(sqrt128, 2)`

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The correct Answer is:
B
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