関連ワード:  is 1 root 2 irrational    is 1 over root 2 irrational    is 1 minus root 2 irrational    is 1 root 2 rational or irrational    1 root 2 is irrational prove    1 root 2 is irrational proof    1 root 2 value is irrational    pt 1 root 2 is irrational    prove that 1 root 2 is irrational class 10    1 upon root 2 is irrational