If f(X)=|(x,x^(2),x^(3)),(1,2x,3x^(2)),(...

If f(X)=`|(x,x^(2),x^(3)),(1,2x,3x^(2)),(0,2,6x)|` then f '(x) is equal to

A

`x^(3)+6x^(2)`

B

`6x^(3)`

C

3x

D

`6x^(2)`

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The correct Answer is:

D

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