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Re: -1<x<0 [#permalink]
1
GREfocus wrote:
-1 < x <0 is basically saying
x= negative non integer or fraction
Let x= -1/2

Quantity A
-1/2 or -0.5

Quantity B
(-1/2)(-1/2)(-1/2) = -1/8 or -0.125

Quantity A is more negative than Quantity B
Hence B is greater

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GREfocus that's not correct though, because it's a double negative situation. You have to sub the variable into the x inside brackets. Since we're dealing with a negative fraction/non-integer, quantity A becomes -(-1/2) or 1/2 and B is -(-1/2)^3 = -(-1/8) = 1/8. Hence A should be bigger
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Re: -1<x<0 [#permalink]
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here x is negative and the question gives -x, -x^3 which means double negative turns to be positive, so quantity A is bigger
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Re: -1<x<0 [#permalink]
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