Question

prove that 3+ 2√5 is irrational

pls help me ​

Answer 1

Answer:

let 3+2 √5 is an rational no ,in form of a and b ,not 0

3+2√5 =a/b

Answer 2

Answer:

let us assume that 3+2√5 Rational no.

so it can be written in the form of a/b

3+2√5=a/b

2√5=a/b-3

2√5=a-3b/3

√5=a-3b/6_ eq 1

hence eq 1 contradicts our assumption so it is an irrational number