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If x=-1 and x=2 are extreme points of f(...

If x=-1 and x=2 are extreme points of `f(x) = alpha log |x|+betax^2+x` then

A

`alpha=2,beta =-1/2`

B

`alpha=2,beta=1/2`

C

`alpha=-6,beta=1/2`

D

`alpha=-6,beta=-1/2`

Text Solution

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The correct Answer is:
A
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