Rational vs Irrational

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What is a rational number?

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A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

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What is an irrational number?

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An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

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Is the number 0 a rational number?

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What is a perfect square?

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A perfect square is a number that can be expressed as the square of an integer.

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Give an example of a perfect square.

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Examples of perfect squares include 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, etc.

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What is the square root of 64?

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The square root of 64 is 8, which is a rational number.

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