Question

To prove 3+2root5 is irrational

Answer 1

hope this helps
#NIDHRA. NAIR
♡(∩o∩)♡

Answer 2

Hey user here is your answer......

To prove--->

$3 + 2 \sqrt{5}$
Is irrational


◆Let it is rational number

◆3+2√5=a/b ( where a & b are co-prime)

◆2√5=a/b-3

◆2√5=a-3b/3

◆√5=a-3b/6

Here √5 & a-3b/6 is rational number but the contradict the fact is √5 is irrational number.

◆So this contradiction arises due to our wrong assumption so 3+2√5 is irrational.


Thanks☺️