関連ワード:  is negative 2 a rational number    is minus 2 a rational number    is negative 1 2 a rational number    is negative 2 3 a rational number    is negative 2 5 a rational number    is negative 2 squared a rational number    is negative 2 7 a rational number    is negative 2 9 a rational number    is negative 65 2 a rational number    is negative 2 pi a rational number