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Let a continous and differentiable funct...

Let a continous and differentiable function `f(x)` is such that `f(x)` and `(d)/(dx)f(x)` have opposite signs everywhere. Then,

A

`f'(x)` is always increasing

B

`f(x)` is always increasing

C

`|f(x)|` is non - decreasing

D

`|f(x)|` is decreasing

Text Solution

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The correct Answer is:
D
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