已知函数f(x)=(x+a)/(x2+3a2)(a不等于0的实数)求函数的单调区间,当a=1时,若对任意x1,x2∈[-3,正无穷),有f(x1)-f(x2)≤m成立,求实数m的最小值
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![已知函数f(x)=(x+a)/(x2+3a2)(a不等于0的实数)求函数的单调区间,当a=1时,若对任意x1,x2∈[-3,正无穷),有f(x1)-f(x2)≤m成立,求实数m的最小值](/uploads/image/z/8818184-56-4.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3D%EF%BC%88x%2Ba%EF%BC%89%2F%EF%BC%88x2%2B3a2%EF%BC%89%EF%BC%88a%E4%B8%8D%E7%AD%89%E4%BA%8E0%E7%9A%84%E5%AE%9E%E6%95%B0%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0%E7%9A%84%E5%8D%95%E8%B0%83%E5%8C%BA%E9%97%B4%2C%E5%BD%93a%3D1%E6%97%B6%2C%E8%8B%A5%E5%AF%B9%E4%BB%BB%E6%84%8Fx1%2Cx2%E2%88%88%5B-3%2C%E6%AD%A3%E6%97%A0%E7%A9%B7%EF%BC%89%2C%E6%9C%89f%EF%BC%88x1%EF%BC%89-f%EF%BC%88x2%EF%BC%89%E2%89%A4m%E6%88%90%E7%AB%8B%2C%E6%B1%82%E5%AE%9E%E6%95%B0m%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC)
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