关于左导数和右导数存在且相等,推出可导的疑问.高数同济第六版总习题二 1(2)(2)f(x)在x.的左导数f'-(x.)及右导数f'+(x.)都存在且相等是f(x)在点x.可导的【充分必要】条件.(注:【】内为
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![关于左导数和右导数存在且相等,推出可导的疑问.高数同济第六版总习题二 1(2)(2)f(x)在x.的左导数f'-(x.)及右导数f'+(x.)都存在且相等是f(x)在点x.可导的【充分必要】条件.(注:【】内为](/uploads/image/z/1041828-60-8.jpg?t=%E5%85%B3%E4%BA%8E%E5%B7%A6%E5%AF%BC%E6%95%B0%E5%92%8C%E5%8F%B3%E5%AF%BC%E6%95%B0%E5%AD%98%E5%9C%A8%E4%B8%94%E7%9B%B8%E7%AD%89%2C%E6%8E%A8%E5%87%BA%E5%8F%AF%E5%AF%BC%E7%9A%84%E7%96%91%E9%97%AE.%E9%AB%98%E6%95%B0%E5%90%8C%E6%B5%8E%E7%AC%AC%E5%85%AD%E7%89%88%E6%80%BB%E4%B9%A0%E9%A2%98%E4%BA%8C+1%EF%BC%882%EF%BC%89%EF%BC%882%EF%BC%89f%28x%29%E5%9C%A8x.%E7%9A%84%E5%B7%A6%E5%AF%BC%E6%95%B0f%27-%28x.%29%E5%8F%8A%E5%8F%B3%E5%AF%BC%E6%95%B0f%27%2B%28x.%29%E9%83%BD%E5%AD%98%E5%9C%A8%E4%B8%94%E7%9B%B8%E7%AD%89%E6%98%AFf%28x%29%E5%9C%A8%E7%82%B9x.%E5%8F%AF%E5%AF%BC%E7%9A%84%E3%80%90%E5%85%85%E5%88%86%E5%BF%85%E8%A6%81%E3%80%91%E6%9D%A1%E4%BB%B6.%EF%BC%88%E6%B3%A8%EF%BC%9A%E3%80%90%E3%80%91%E5%86%85%E4%B8%BA)
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