设函数f(x)=x^3-3ax+b(a不等于0) (1)若曲线y=f(x)在点(2,f(2))处与直线y=3x+8相切,求a,b的值?(2)...设函数f(x)=x^3-3ax+b(a不等于0) (1)若曲线y=f(x)在点(2,f(2))处与直线y=3x+8相切,求a,b的值?(2)求函数f(x)的单调区
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![设函数f(x)=x^3-3ax+b(a不等于0) (1)若曲线y=f(x)在点(2,f(2))处与直线y=3x+8相切,求a,b的值?(2)...设函数f(x)=x^3-3ax+b(a不等于0) (1)若曲线y=f(x)在点(2,f(2))处与直线y=3x+8相切,求a,b的值?(2)求函数f(x)的单调区](/uploads/image/z/4113084-12-4.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3Dx%5E3-3ax%2Bb%28a%E4%B8%8D%E7%AD%89%E4%BA%8E0%29+%281%29%E8%8B%A5%E6%9B%B2%E7%BA%BFy%3Df%28x%29%E5%9C%A8%E7%82%B9%282%2Cf%282%29%29%E5%A4%84%E4%B8%8E%E7%9B%B4%E7%BA%BFy%3D3x%2B8%E7%9B%B8%E5%88%87%2C%E6%B1%82a%2Cb%E7%9A%84%E5%80%BC%3F%282%29...%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3Dx%5E3-3ax%2Bb%28a%E4%B8%8D%E7%AD%89%E4%BA%8E0%29+%281%29%E8%8B%A5%E6%9B%B2%E7%BA%BFy%3Df%28x%29%E5%9C%A8%E7%82%B9%282%2Cf%282%29%29%E5%A4%84%E4%B8%8E%E7%9B%B4%E7%BA%BFy%3D3x%2B8%E7%9B%B8%E5%88%87%2C%E6%B1%82a%2Cb%E7%9A%84%E5%80%BC%3F%282%29%E6%B1%82%E5%87%BD%E6%95%B0f%28x%29%E7%9A%84%E5%8D%95%E8%B0%83%E5%8C%BA)
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