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

If `f(x)=a log x+ bx^(2) +x` has extrema at ` x=1 ans x =2` then `(6a, 6b)-=..`

A

`(4, 1)`

B

`(-4, -1)`

C

`(1 , 4)`

D

`(-1, -4)`

Text Solution

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The correct Answer is:
B
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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