Prove that √8+5 is irrational – InterviewSolution

1.

Prove that √8+5 is irrational

Answer»

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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