Ilovetacos

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PLS HELP :(

1. For non-zero real numbers $a,$ $b,$ and $c,$ find all possible values of the expression \[\frac{a}{|a|} + \frac{b}{|b|} + \frac{c}{|c|} + \frac{abc}{|abc|}.\]Enter your values separated by commas. For example, if you think the possible values are 4, read more ..

Ilovetacos Nov 4, 2023