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Mathematics
OpenStudy (school):

show me some irrational numbers, explain what they are!

OpenStudy (anonymous):

Basically, a irrational number cannot be formed as a rational number. If you have the number 1.5 it can be formed as a rational number 3/2. Therefore 1.5 is not a irrational number. \[\sqrt{2}\] is one irrational number, since you can never represent it accurately as a/b (rational number). \[\pi\] and e are also irrational numbers that you cannot represent accurately in the form a/b, as a rational number.

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