数学问题,高中,导数 方程的根.谢谢!已知函数f(x)=1/3·x^3-[(a+1)/2]·x^2+bx+a,(a,b∈R),且导函数f'(x)的图像过原点.求:当a>0,求函数f(x)的零点个数谢谢!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 01:16:03
![数学问题,高中,导数 方程的根.谢谢!已知函数f(x)=1/3·x^3-[(a+1)/2]·x^2+bx+a,(a,b∈R),且导函数f'(x)的图像过原点.求:当a>0,求函数f(x)的零点个数谢谢!](/uploads/image/z/7626548-20-8.jpg?t=%E6%95%B0%E5%AD%A6%E9%97%AE%E9%A2%98%2C%E9%AB%98%E4%B8%AD%2C%E5%AF%BC%E6%95%B0+%E6%96%B9%E7%A8%8B%E7%9A%84%E6%A0%B9.%E8%B0%A2%E8%B0%A2%21%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3D1%2F3%C2%B7x%5E3-%5B%28a%2B1%29%2F2%5D%C2%B7x%5E2%2Bbx%2Ba%2C%28a%2Cb%E2%88%88R%29%2C%E4%B8%94%E5%AF%BC%E5%87%BD%E6%95%B0f%27%28x%29%E7%9A%84%E5%9B%BE%E5%83%8F%E8%BF%87%E5%8E%9F%E7%82%B9.%E6%B1%82%EF%BC%9A%E5%BD%93a%3E0%2C%E6%B1%82%E5%87%BD%E6%95%B0f%28x%29%E7%9A%84%E9%9B%B6%E7%82%B9%E4%B8%AA%E6%95%B0%E8%B0%A2%E8%B0%A2%21)
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