prove that √8+5 is irrational
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let √8+5 be rational no.
take in the form of p/q and q does not equal to 0
√ 8+5 = p/q
√8= p/q -5
√8 = p- 5q / q
so √8 is irrational and
our assumption is wrong this no. is irrational no.
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