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An example is the square root of a number. Ex: square root of 2. This is 1 example, not the main one.

Any cube root or square root which doesn't give a perfect number is an irrational number. Ex; square root and cube root of 5, since their answer will be 2.24 and 1.70 which are not perfect numbers like square roots of 25 and 64 or cube roots of 27 and 216.

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14y ago
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13y ago

Pi 3.14159... is an irrational number. That's just one example, there are infinitely many of them, just like rational numbers. The word "irrational" means it cannot be expressed as a ratio, or fraction, of any two rational numbers. By the way, the other meaning of irrational meaning non-sensical comes from the same root. The ancient Greeks thought that Irrational Numbers don't exist (they were wrong about that). So something irrational was impossible, pure nonsense.

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Q: What are examples of irrational numbers?
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Four examples of irrational numbers are 21/2, 31/2, 51/2 & 71/3


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Irrational numbers can't be expressed as fractions Irrational numbers are never ending decimal numbers The square root of 2 and the value of pi in a circle are examples of irrational numbers


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