Which number is an irrational number?
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Answer:
(b) -√3
Step-by-step explanation:
Any fraction or terminating decimal is rational. (a) and (c)
Any repeating decimal is rational.
Any square root of a perfect square is rational. (d)
Any square root of an integer that is not a perfect square is irrational. (c)
The sign of the number is irrelevant.
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Of these numbers, the irrational one is -√3.