已知a+b=2,(1-a)²/b+(1-b)²/a=-4,则ab的值为().A.1 B.-1 C.-1/2 D.1/2
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 10:07:44
![已知a+b=2,(1-a)²/b+(1-b)²/a=-4,则ab的值为().A.1 B.-1 C.-1/2 D.1/2](/uploads/image/z/1750649-41-9.jpg?t=%E5%B7%B2%E7%9F%A5a%2Bb%3D2%2C%281-a%29%26%23178%3B%2Fb%2B%281-b%29%26%23178%3B%2Fa%3D-4%2C%E5%88%99ab%E7%9A%84%E5%80%BC%E4%B8%BA%EF%BC%88%EF%BC%89.A.1+B.-1+C.-1%2F2+D.1%2F2)
已知a+b=2,(1-a)²/b+(1-b)²/a=-4,则ab的值为().A.1 B.-1 C.-1/2 D.1/2
已知a+b=2,(1-a)²/b+(1-b)²/a=-4,则ab的值为().A.1 B.-1 C.-1/2 D.1/2
已知a+b=2,(1-a)²/b+(1-b)²/a=-4,则ab的值为().A.1 B.-1 C.-1/2 D.1/2