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September 21, 2014

Homework Help: irrational numbers?!

Posted by Sanchia on Monday, June 15, 2009 at 11:10pm.

what are rational and irrational numbers??
i know that irrational numbers are numbers that cannot be expressed as a fraction, but i'm still confused.

there is this question:

which of the following are irrational numbers: √2, √8, 22/7, pi, 2√3

i know that 22/7 is rational, pi is irrational, but what about those square roots?

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