设函数f(x)=x3(三次方)-3ax+b(a不等于0) (1)若曲线y=f(x)在点(2,f(2))处与直线y=8相切,求ab的值(2)求函数f(x)的单调区间与极值点
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![设函数f(x)=x3(三次方)-3ax+b(a不等于0) (1)若曲线y=f(x)在点(2,f(2))处与直线y=8相切,求ab的值(2)求函数f(x)的单调区间与极值点](/uploads/image/z/2834779-67-9.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3Dx3%EF%BC%88%E4%B8%89%E6%AC%A1%E6%96%B9%EF%BC%89-3ax%2Bb%EF%BC%88a%E4%B8%8D%E7%AD%89%E4%BA%8E0%EF%BC%89+%EF%BC%881%29%E8%8B%A5%E6%9B%B2%E7%BA%BFy%3Df%EF%BC%88x%EF%BC%89%E5%9C%A8%E7%82%B9%EF%BC%882%2Cf%EF%BC%882%EF%BC%89%EF%BC%89%E5%A4%84%E4%B8%8E%E7%9B%B4%E7%BA%BFy%3D8%E7%9B%B8%E5%88%87%2C%E6%B1%82ab%E7%9A%84%E5%80%BC%EF%BC%882%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%E7%9A%84%E5%8D%95%E8%B0%83%E5%8C%BA%E9%97%B4%E4%B8%8E%E6%9E%81%E5%80%BC%E7%82%B9)
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