fx是定义在R上的减函数,满足fx+fy=f(xy) 1 求证fx-fy=f(x/y) 2fx是定义在R上的减函数,满足fx+fy=f(xy)1 求证fx-fy=f(x/y)2 若f4=-4解不等式fx-f(1/(x-12))≧-12
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![fx是定义在R上的减函数,满足fx+fy=f(xy) 1 求证fx-fy=f(x/y) 2fx是定义在R上的减函数,满足fx+fy=f(xy)1 求证fx-fy=f(x/y)2 若f4=-4解不等式fx-f(1/(x-12))≧-12](/uploads/image/z/5124911-23-1.jpg?t=fx%E6%98%AF%E5%AE%9A%E4%B9%89%E5%9C%A8R%E4%B8%8A%E7%9A%84%E5%87%8F%E5%87%BD%E6%95%B0%2C%E6%BB%A1%E8%B6%B3fx%2Bfy%3Df%EF%BC%88xy%EF%BC%89+1+%E6%B1%82%E8%AF%81fx-fy%3Df%EF%BC%88x%2Fy%EF%BC%89+2fx%E6%98%AF%E5%AE%9A%E4%B9%89%E5%9C%A8R%E4%B8%8A%E7%9A%84%E5%87%8F%E5%87%BD%E6%95%B0%2C%E6%BB%A1%E8%B6%B3fx%2Bfy%3Df%EF%BC%88xy%EF%BC%891+%E6%B1%82%E8%AF%81fx-fy%3Df%EF%BC%88x%2Fy%EF%BC%892+%E8%8B%A5f4%3D-4%E8%A7%A3%E4%B8%8D%E7%AD%89%E5%BC%8Ffx-f%EF%BC%881%2F%EF%BC%88x-12%EF%BC%89%EF%BC%89%E2%89%A7-12)
fx是定义在R上的减函数,满足fx+fy=f(xy) 1 求证fx-fy=f(x/y) 2fx是定义在R上的减函数,满足fx+fy=f(xy)1 求证fx-fy=f(x/y)2 若f4=-4解不等式fx-f(1/(x-12))≧-12
fx是定义在R上的减函数,满足fx+fy=f(xy) 1 求证fx-fy=f(x/y) 2
fx是定义在R上的减函数,满足fx+fy=f(xy)
1 求证fx-fy=f(x/y)
2 若f4=-4解不等式fx-f(1/(x-12))≧-12
fx是定义在R上的减函数,满足fx+fy=f(xy) 1 求证fx-fy=f(x/y) 2fx是定义在R上的减函数,满足fx+fy=f(xy)1 求证fx-fy=f(x/y)2 若f4=-4解不等式fx-f(1/(x-12))≧-12