已知函数f(x)=x3+ax2+bx若函数f(x)在x=2处有极值-6,求y=(x)的单调递减区间 若y=(x已知函数f(x)=x3+ax2+bx1,若函数f(x)在x=2处有极值-6,求y=(x)的单调递减区间2 若y=(x)的导数f'(x)对x∈[-1,1]都有f'(x)≤2,求b/a-1
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![已知函数f(x)=x3+ax2+bx若函数f(x)在x=2处有极值-6,求y=(x)的单调递减区间 若y=(x已知函数f(x)=x3+ax2+bx1,若函数f(x)在x=2处有极值-6,求y=(x)的单调递减区间2 若y=(x)的导数f'(x)对x∈[-1,1]都有f'(x)≤2,求b/a-1](/uploads/image/z/2569056-24-6.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dx3%2Bax2%2Bbx%E8%8B%A5%E5%87%BD%E6%95%B0f%28x%29%E5%9C%A8x%3D2%E5%A4%84%E6%9C%89%E6%9E%81%E5%80%BC-6%2C%E6%B1%82y%3D%28x%29%E7%9A%84%E5%8D%95%E8%B0%83%E9%80%92%E5%87%8F%E5%8C%BA%E9%97%B4+%E8%8B%A5y%3D%28x%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dx3%2Bax2%2Bbx1%2C%E8%8B%A5%E5%87%BD%E6%95%B0f%28x%29%E5%9C%A8x%3D2%E5%A4%84%E6%9C%89%E6%9E%81%E5%80%BC-6%2C%E6%B1%82y%3D%28x%29%E7%9A%84%E5%8D%95%E8%B0%83%E9%80%92%E5%87%8F%E5%8C%BA%E9%97%B42+%E8%8B%A5y%3D%28x%29%E7%9A%84%E5%AF%BC%E6%95%B0f%27%28x%29%E5%AF%B9x%E2%88%88%5B-1%2C1%5D%E9%83%BD%E6%9C%89f%27%28x%29%E2%89%A42%2C%E6%B1%82b%2Fa-1)
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