AP EAMCET Engineering 24 Apr 2017 Shift 1 Paper

Section: Mathematics

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Question : 2 of 160

Marks: +1, -0

If f:IR−{0}→IR is defined by f(x)=x+

1

x

and if fk(x)=[f(x)=[f(x)]k for k≥1 then f4(x)−f(x4)−4f2(x)=

-2
2
1
-1

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