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The product of sqrt(2) and sqrt(2) is 2, a rational number.

Consider surds of the form a+sqrt(b) where a and b are rational but sqrt(b) is irrational.

The surd has a conjugate pair which is a - sqrt(b).

Both these are irrational, but their product is a2 - b, which is rational.

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Q: Is the product of any two irrational numbers is an irrational?
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