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If f(x)= |{:(3,3x,3x^2+2a^2),(3x,3x^2+2a...

If `f(x)= |{:(3,3x,3x^2+2a^2),(3x,3x^2+2a^2,3x^3+6a^2x),(3x^2+2a^2,3x^3+6a^2x,3x^4+12a^2x^2+2a^4):}|` then

A

`f'(x)=0`

B

y=f(x) is a straight line parallel to x -axis

C

`int_0^2 f(x)dx=32a^4`

D

none of these

Text Solution

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The correct Answer is:
A, B
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