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For what real values of a is the expression (a + 3)/(a^3 - a) undefined? List your answers in increasing order separated by commas.

 Jan 29, 2022
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For the expression to be undefined, it has to be \(x \over 0\). The only ways to get \(a^3-a\) equal to \(0 \) is when \(a \) is \(\color{brown} -1, 0, 1 \)

 Jan 29, 2022

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