2 root 3 is a rational number or irrational July 8, 2019 16 32 64 128 2 under root 3 is a rational or irrational number 3 2 root 5 is a rational number or irrational number Prove that root 2 is irrational √2 is irrational proof class 10 Square root of 2 is irrational proof by contradiction