examine whether the following numbers are rational or irrational √7
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√7 is not a perfect square root, so it is an irrational number. We have, ∴√4 can be expressed in the form of , p/ q, so it is a rational number
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√7 =2.64575.......
Since , its decimal expansion is non terminatting and non recurring
Therefore, √7 is an irrational number
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