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19 May, 13:43

Let a and b be irrational numbers. Is (ab) ^2 always rational, sometimes rational, or never rational?

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  1. 19 May, 15:55
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    When you multiply 2 irrational numbers, the result is always irrational. This applies to squaring as well since it is still multiplying irrational numbers together (though the terms are the same)

    Final answer: never rational
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