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If f(x) = a log |x| + bx^(2) + x has ext...

If f(x) = a log |x| + `bx^(2)` + x has extreme values at x = -1 and x = 2 , then the ordered pair (a,b) =

A

`2,(-1)/(2)`

B

`(-1)/(2),2`

C

`(1)/(2),2`

D

`2,(1)/(2)`

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The correct Answer is:
A
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AAKASH SERIES-MAXIMA AND MINIMA -PRACTICE SHEET (EXERCISE -I) (LEVEL -I) (STRAIGHT OBJECTIVE TYPE QUESTIONS)
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