Question

Prove that root 5 is irrational​

Answer 1

5 is an irrational number because it is non terminating and non recurring .

Answer 2

$\huge\bf\purple{ANSWER!!}$

Let us assume that √5 is a rational number.

we know that the rational numbers are in the form of p/q form where p,q are intezers.

so, √5 = p/q

     p = √5q

we know that 'p' is a rational number. so √5 q must be rational since it equals to p

but it doesnt occurs with √5 since its not an intezer

therefore, p =/= √5q

this contradicts the fact that √5 is an irrational number

hence our assumption is wrong and √5 is an irrational number.

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