Asked by Sara

Is the product of two irrational numbers always an irrational
number?
Answered by Lisa
not neccessarily
Answered by MathMate
When you have a statement like "...always...", it is sometimes (not always) easier to disprove with a counter example than to prove the truth of the statement.

For example,
√2 is irrational.
√2 * √2 = 2 is rational.
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