関連ワード:  why can't the square root of a number be negative    can the square root of a number be negative    can the square root of a number be negative and positive    why is the square root of a number positive and negative    can the square root of a real number be negative    can the square root of a complex number be negative    can the square root of a natural number be negative    why is the square root of a negative number imaginary    why is the square root of a negative number undefined    why is the square root of a negative number not real  
結果 : why can't the square root of a number be negative