関連ワード:  prove that 2 is an irrational number class 9    prove that √ 2 is not a rational number class 9    prove that √ 2 is an irrational number class 9    prove that root 2 is an irrational number class 9    prove that 2 3 is an irrational number class 9    prove that 2 √ 3 is an irrational number class 9    prove that 5 √ 2 is an irrational number class 9    show that √ 2 is an irrational number class 9    show that 4 2 is an irrational number class 9    show that 4 √ 2 is an irrational number class 9  
結果 : prove that 2 is a rational number class 9