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Re: If f(x) = (x^6 + 1)/x^2 for all non-zero values of x, then what is the [#permalink]
In this question we get the function f(x) = (x^6 +1)/x^2 , where we have even powers for the variable x. We need to find the value of function f(x). So we need to get the value of x, and it does not matter whether it is negative or positive. Because even powers will always deliver positive result.
So, as per the staatements,
Statement 1 says x<0, but does not say any value for x. So insufficient.

Statement 2 says , lxl = 16 , which implies x could be anything +16, or -16, but in the introduction of this question we have seen that even powers always deliver positive result.. so we need only the value that is the magnitude of x irrespective of signs.
So statement 2 is sufficient. Answer B
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Re: If f(x) = (x^6 + 1)/x^2 for all non-zero values of x, then what is the [#permalink]
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Re: If f(x) = (x^6 + 1)/x^2 for all non-zero values of x, then what is the [#permalink]
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