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f(x)=(1-x+x^(2))/(1+x+x^(2)) decreases i...

`f(x)=(1-x+x^(2))/(1+x+x^(2))` decreases in

A

`(-1,1)`

B

`(- infty, -1)uu (1, infty)`

C

`(- infty , (1)/(2))`

D

none of these

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The correct Answer is:
A
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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