设函数f(x)=ax-(a+1)ln(x+1) a属于R(1)若函数f(x)在[2,正无穷)上为单调增函数,求实数a的取值范围.(2)若a=1,试在函数f(x)的图像上求两点,使以这两点为切点的切线互相垂直,且两切点的横坐标均在
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![设函数f(x)=ax-(a+1)ln(x+1) a属于R(1)若函数f(x)在[2,正无穷)上为单调增函数,求实数a的取值范围.(2)若a=1,试在函数f(x)的图像上求两点,使以这两点为切点的切线互相垂直,且两切点的横坐标均在](/uploads/image/z/5081136-24-6.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3Dax-%28a%2B1%29ln%28x%2B1%29+a%E5%B1%9E%E4%BA%8ER%EF%BC%881%EF%BC%89%E8%8B%A5%E5%87%BD%E6%95%B0f%28x%29%E5%9C%A8%5B2%2C%E6%AD%A3%E6%97%A0%E7%A9%B7%29%E4%B8%8A%E4%B8%BA%E5%8D%95%E8%B0%83%E5%A2%9E%E5%87%BD%E6%95%B0%2C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.%EF%BC%882%EF%BC%89%E8%8B%A5a%3D1%2C%E8%AF%95%E5%9C%A8%E5%87%BD%E6%95%B0f%28x%29%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%8A%E6%B1%82%E4%B8%A4%E7%82%B9%2C%E4%BD%BF%E4%BB%A5%E8%BF%99%E4%B8%A4%E7%82%B9%E4%B8%BA%E5%88%87%E7%82%B9%E7%9A%84%E5%88%87%E7%BA%BF%E4%BA%92%E7%9B%B8%E5%9E%82%E7%9B%B4%2C%E4%B8%94%E4%B8%A4%E5%88%87%E7%82%B9%E7%9A%84%E6%A8%AA%E5%9D%90%E6%A0%87%E5%9D%87%E5%9C%A8)
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