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If the function f(x)=x^3-12ax^2+36a^2x...

If the function
`f(x)=x^3-12ax^2+36a^2x-4(agt0)` attains its maximum and minimum at x=p and x=q respectively, and if `3p=q^2`, then a is equal to

A

`1/6`

B

`1/36`

C

`1/3`

D

18

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The correct Answer is:
A
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