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The function f(x)=3x^(3)-36x+99 is incre...

The function `f(x)=3x^(3)-36x+99` is increasing for

A

`-ooltxlt2`

B

`-2ltxltoo`

C

`-2ltxlt2`

D

`xlt-2orxgt2`

Text Solution

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The correct Answer is:
D
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