一道数学难题 要简单的回答 关于x的函数f(x)=(-1/3)x^3+bx^2+cx+bc,其导函数是f'(x).令g(x)=|f'(x)|,记g(x)在区间[-1,1]上的最大值为M1)如果函数f(x)在x=1处有极值-4/3,试确定b、c的值;2)若|b|>1,证明对
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![一道数学难题 要简单的回答 关于x的函数f(x)=(-1/3)x^3+bx^2+cx+bc,其导函数是f'(x).令g(x)=|f'(x)|,记g(x)在区间[-1,1]上的最大值为M1)如果函数f(x)在x=1处有极值-4/3,试确定b、c的值;2)若|b|>1,证明对](/uploads/image/z/3631888-64-8.jpg?t=%E4%B8%80%E9%81%93%E6%95%B0%E5%AD%A6%E9%9A%BE%E9%A2%98+%E8%A6%81%E7%AE%80%E5%8D%95%E7%9A%84%E5%9B%9E%E7%AD%94+%E5%85%B3%E4%BA%8Ex%E7%9A%84%E5%87%BD%E6%95%B0f%28x%29%3D%28-1%2F3%29x%5E3%2Bbx%5E2%2Bcx%2Bbc%2C%E5%85%B6%E5%AF%BC%E5%87%BD%E6%95%B0%E6%98%AFf%27%EF%BC%88x%EF%BC%89.%E4%BB%A4g%28x%29%3D%7Cf%27%28x%29%7C%2C%E8%AE%B0g%28x%29%E5%9C%A8%E5%8C%BA%E9%97%B4%5B-1%2C1%5D%E4%B8%8A%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%BAM1%EF%BC%89%E5%A6%82%E6%9E%9C%E5%87%BD%E6%95%B0f%28x%29%E5%9C%A8x%3D1%E5%A4%84%E6%9C%89%E6%9E%81%E5%80%BC-4%2F3%2C%E8%AF%95%E7%A1%AE%E5%AE%9Ab%E3%80%81c%E7%9A%84%E5%80%BC%EF%BC%9B2%EF%BC%89%E8%8B%A5%7Cb%7C%3E1%2C%E8%AF%81%E6%98%8E%E5%AF%B9)
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