Question

prove that 3+2√5
is an irrational
​

Answer 1

Step-by-step explanation:

let assume that 3+2√5 is rational

3+2√5=a/b

2√5=a/b-3

2√5=a-3b/b

√5=a-3b/2b

therefore our assumption is wrong.

an irrational not equal to rational

therefore 3+2√5 is irrational