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f(x)=4tanx-tan^(2)x+tan^(3)x,xnenpi+(pi)...

`f(x)=4tanx-tan^(2)x+tan^(3)x,xnenpi+(pi)/(2)`,

A

is monotonically increasing

B

is monotonically decreasing

C

has a point of maxima

D

has a point of minima

Text Solution

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The correct Answer is:
A
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