関連ワード:  is root 12 3 irrational    is root 12 3 irrational number    is root 12 upon root 3 irrational    is root 12 divided by root 3 irrational    root 12 3 is rational or irrational    under root 12 upon 3 is irrational number    is root 12 irrational    is root 12 an irrational number