已知函数f(x)=lg(1-x)/(x+1) g(x)=1/(x+2) 设函数F(x)=f(x)+g(x)求F(x)的解析式及定义域在F(X)的图象上是否存在两个不同的点A,B,使直线AB恰好与Y轴垂直?若存在,求出A,B的坐标,若不存在,说明理由.
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![已知函数f(x)=lg(1-x)/(x+1) g(x)=1/(x+2) 设函数F(x)=f(x)+g(x)求F(x)的解析式及定义域在F(X)的图象上是否存在两个不同的点A,B,使直线AB恰好与Y轴垂直?若存在,求出A,B的坐标,若不存在,说明理由.](/uploads/image/z/8613124-52-4.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dlg%281-x%29%2F%28x%2B1%29+g%28x%29%3D1%2F%28x%2B2%29+%E8%AE%BE%E5%87%BD%E6%95%B0F%EF%BC%88x%EF%BC%89%3Df%28x%29%2Bg%28x%29%E6%B1%82F%28x%29%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%E5%8F%8A%E5%AE%9A%E4%B9%89%E5%9F%9F%E5%9C%A8F%28X%29%E7%9A%84%E5%9B%BE%E8%B1%A1%E4%B8%8A%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E4%B8%A4%E4%B8%AA%E4%B8%8D%E5%90%8C%E7%9A%84%E7%82%B9A%2CB%2C%E4%BD%BF%E7%9B%B4%E7%BA%BFAB%E6%81%B0%E5%A5%BD%E4%B8%8EY%E8%BD%B4%E5%9E%82%E7%9B%B4%3F%E8%8B%A5%E5%AD%98%E5%9C%A8%2C%E6%B1%82%E5%87%BAA%2CB%E7%9A%84%E5%9D%90%E6%A0%87%2C%E8%8B%A5%E4%B8%8D%E5%AD%98%E5%9C%A8%2C%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1.)
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