関連ワード:  1 root 2 is a rational or irrational number    1 upon root 2 is a rational or irrational number    prove that 1 by root 2 is a rational number irrational number    is 1/√2 a rational number    1/root 2 is rational or irrational    is root 1 a rational number    is root 2 a rational number  
結果 : 1 root 2 is a rational or irrational number