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Let f(x)=x^(4)-4x, then :...

Let `f(x)=x^(4)-4x`, then :

A

f is increasing in `(-oo, 1]`

B

f is increasing in `[1, oo)`

C

f is decreasing in `[1, oo)`

D

None of these

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The correct Answer is:
B
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MODERN PUBLICATION-APPLICATION OF DERIVATIVES -Recent Competitive Questions (Questions from Karnataka CET & COMED)
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