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If y=a log x +bx^(2)+x has its exteme va...

If `y=a log x +bx^(2)+x` has its exteme values at x=-1 and x=2, then find a and b.

A

`a = 2, b = -1

B

a = 2, b = -1/2

C

a = -2, b = 1/2

D

None of these

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The correct Answer is:
B
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ML KHANNA-MAXIMA AND MINIMA -SELF ASSESSMENT TEST
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