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Are the irrational numbers closed under addition?

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Answer:

No, irrational numbers are not closed under addition.

Explanation:

The closure property of irrational numbers under addition states that the sum of two irrational number will always be an irrational number.

That is if a and b are two irrational numbers then, their sum a + b should always be irrational.

Irrational numbers are not closed under addition.

This can be explained with the help of an example:

We know that
\sqrt2 and
-\sqrt2 are two irrational number.

If we consider their sum, then,


\sqrt2 + (-\sqrt2) = \sqrt2 - \sqrt2 = 0

But 0 is a rational number.

Hence, irrational number are not closed under addition.

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