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What are irrational numbers? How do they...

What are irrational numbers? How do they differ form rational numbers? Give examples.

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The correct Answer is:
Irrational number those who cannot be represented in form `p/q` (`q ne 0`) where `p, q` are integers while rational number can be represented.
Example of irrational number, `pi, sqrt(2), 1.202002000...`
Example of rational number, `22/7, 5/3, 2.34, 4.bar(5)`
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