Question

different methods to prove that root 5 is irrational ​

Answer 1

we know that the rational numbers are in the form of p/q form where p,q are intezers. hence our assumption is wrong and √5 is an irrational number. Solution: Let us consider that √5 is a “rational number”.

Answer 2

Its is not have any divisible and its is not written in pby q form so it is irrational