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f(x)=2x^3-15 x^2+36 x+5 is decreasing in...

`f(x)=2x^3-15 x^2+36 x+5` is decreasing in

A

[2,3]

B

(2,3)

C

`(-infty,2)`

D

`(3,infty)`

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The correct Answer is:
B
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