関連ワード:  prove that 5 root 2 is an irrational number class 10    how to prove root 2 is irrational class 10    how to prove root 2 root 5 is irrational    why root 5 is irrational number    how root 2 is irrational    how to prove root 5 is irrational  
結果 : prove that 5 root 2 is an irrational number class 10