Question

Prove that 3 + 2√5
is irrational​

Answer 1

Answer:

3 + 2 rt5 = p/q

2 rt5 = p/q - 3

Rt5 =( p/q - 3)/2

Therefore rt is irrational no but coming ans is not irrational no

Therefore 3 + 2rt5 is irrational no