Question

prove
$prove \: \sqrt{7 \:} is \: a \: rtional \: number$
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Answer 1

Step-by-step explanation:

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Lets assume that √7 is rational number. ie √7=p/q. we divide by the common factor to get √7 = a/b were a and b are co-prime number. ... This is contridite to the fact that a and b have no common factor.