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The function f(x)=x^3-3x^2-24x+5 is an i...

The function `f(x)=x^3-3x^2-24x+5` is an increasing function in the interval a)`(-infty,-2) cup (4,infty)` b)`(-2,infty)` c)`(-2,4)` d)`(-infty,4)`

A

`(-infty,-2) cup (4,infty)`

B

`(-2,infty)`

C

`(-2,4)`

D

`(-infty,4)`

Text Solution

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The correct Answer is:
A
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