Question

Is there any way other than 'contradiction method' to prove any no. is irrational?

Answer 1

hey mate in our syllabus there is only one contradiction method and marks are only for it ..
No method is given other than this so u try it in ur EXAMS...... sweet dreams mate

Answer 2

Yes bub, there are two methods, but Contradiction method is honestly the easiest way among the two. If not contradiction, you can go for Decimal method, i.e. to show that it's decimal representation cannot be terminating or repeating.