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Sqrt(4) = 2, sqrt(0.04) = 0.2 are examples where the square roots are rational.

Sqrt(3) is irrational

Sqrt(-3) is neither rational nor irrational but imaginary.

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Q: Is every square root an irrational number?
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Is the square root of 7 irrational or rational?

It is a irrational number. Because the square root of every imperfect square is irrational number.


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