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If f^1(x)=(x-a)^8(x-b)^(11) then...

If `f^1(x)=(x-a)^8(x-b)^(11)` then

A

x=b is a point of minimum

B

x=b is a point of maximum

C

x=b is a point having neither maximum nor minimum

D

`f'(b)gt0`

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AAKASH SERIES-MAXIMA & MINIMA-EXERCISE-II
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