一道令人迷惑的数学题(2010年内江)下列等式成立的是( )(A)√a²+√b²=a+b(B)√(a-b/a)=-√(-ab)(C)√(a/b)=(√a)/(√b)(D)√(-a²b²)=-ab非常感谢朋友们,显然这是一道“脑筋
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 17:49:47
![一道令人迷惑的数学题(2010年内江)下列等式成立的是( )(A)√a²+√b²=a+b(B)√(a-b/a)=-√(-ab)(C)√(a/b)=(√a)/(√b)(D)√(-a²b²)=-ab非常感谢朋友们,显然这是一道“脑筋](/uploads/image/z/10113255-63-5.jpg?t=%E4%B8%80%E9%81%93%E4%BB%A4%E4%BA%BA%E8%BF%B7%E6%83%91%E7%9A%84%E6%95%B0%E5%AD%A6%E9%A2%98%EF%BC%882010%E5%B9%B4%E5%86%85%E6%B1%9F%EF%BC%89%E4%B8%8B%E5%88%97%E7%AD%89%E5%BC%8F%E6%88%90%E7%AB%8B%E7%9A%84%E6%98%AF%EF%BC%88+%EF%BC%89%EF%BC%88A%EF%BC%89%E2%88%9Aa%26sup2%3B%2B%E2%88%9Ab%26sup2%3B%3Da%2Bb%EF%BC%88B%EF%BC%89%E2%88%9A%28a-b%2Fa%29%3D-%E2%88%9A%28-ab%29%EF%BC%88C%EF%BC%89%E2%88%9A%28a%2Fb%29%3D%28%E2%88%9Aa%29%2F%28%E2%88%9Ab%29%EF%BC%88D%EF%BC%89%E2%88%9A%28-a%26sup2%3Bb%26sup2%3B%29%3D-ab%E9%9D%9E%E5%B8%B8%E6%84%9F%E8%B0%A2%E6%9C%8B%E5%8F%8B%E4%BB%AC%EF%BC%8C%E6%98%BE%E7%84%B6%E8%BF%99%E6%98%AF%E4%B8%80%E9%81%93%E2%80%9C%E8%84%91%E7%AD%8B)
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