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D01-10

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Joined: 02 Jun 2013
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D01-10  [#permalink]

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New post 04 Oct 2019, 10:00
Hi Bunuel ,

Please validate my reasoning for this question.

Statement A - (1/x)>(-1)
taking reciprocal here
x<(-1)
Now since x is less than 1 then it cannot be greater than 1.

Statement B-
(1/x^5)>(1/x^3)
Again taking reciprocal here @
x^5<x^3
x^3(x^2-1)<0
x^3(x+1)(x-1)<0
so we can find now that ,
x<-1 and 0<x<1
Here we can confidently say that x cannot be greater than 1.

Please help me to understand where i am missing with statement A
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D01-10   [#permalink] 04 Oct 2019, 10:00

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