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f:R rarr R,f(x) is differentiable such t...

`f:R rarr R,f(x)` is differentiable such that `ff((x))=k(x^(5)+x).(kne0)` Then f(x) is

A

increasing

B

decreasing

C

either increasing or decreasing

D

non-monotonic

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The correct Answer is:
C
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FIITJEE-APPLICATION OF DERIVATIVE-Assignment Objective (level-1)
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  4. f:R rarr R,f(x) is differentiable such that f(x)=k(x^(5)+x).(kne0) The...

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  7. If f(x) = {{:( 3x ^(2) + 12 x - 1",", - 1 le x le 2), (37- x",", 2 lt...

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  9. f(x)={:{(max g(t), 0let le x , 0le x lepi/2),(min g(t) , xlet lt 0, -p...

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  15. Which of the following statements is not true about f(x) = 1+x+ x^(2)/...

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  16. The set of all values a for which f(x) = (a^(2) - 3a+2)(cosx/2)+(a-1)x...

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  19. A function g(theta ) = int(0)^(sin^(2)theta) f(x)dx + int(0)^(cos^(2...

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  20. The functio f(x)=tanx+(1)/(x), AA x in (0, (pi)/(2)) has

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