Question

Prove that √5 is irrational.​

Answer 1

Answer:

If √5 is rational, that means it can be written in the form of a/b, where a and b integers that have no common factor other than 1 and b ≠ 0. This means 5 divides a². So, we conclude that √5 is irrational

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Answer 2

$\sqrt{5}$

=2.2360679774997

this irrational because it is non terminating

it is not a perfect square so we can't write it as fractions