已知函数f(x)={[﹣x^2+2x,(x≤0)];[ln(x+1),(x>0)]},若|f(x)|≥ax,则a的取值范围是什么?x
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![已知函数f(x)={[﹣x^2+2x,(x≤0)];[ln(x+1),(x>0)]},若|f(x)|≥ax,则a的取值范围是什么?x](/uploads/image/z/3857403-3-3.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3D%7B%5B%EF%B9%A3x%5E2%2B2x%2C%28x%E2%89%A40%29%5D%3B%5Bln%28x%2B1%29%2C%28x%EF%BC%9E0%29%5D%7D%2C%E8%8B%A5%EF%BD%9Cf%28x%29%EF%BD%9C%E2%89%A5ax%2C%E5%88%99a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF%E4%BB%80%E4%B9%88%3Fx)
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