x1,x2是f(x)=(a/3)x^3+[(b-1)/2]x^2+x的两个极值点,(a.b属于R a>0) f(x)的导数是y=f'(x) 一 如果x1
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![x1,x2是f(x)=(a/3)x^3+[(b-1)/2]x^2+x的两个极值点,(a.b属于R a>0) f(x)的导数是y=f'(x) 一 如果x1](/uploads/image/z/8652106-10-6.jpg?t=x1%2Cx2%E6%98%AFf%28x%29%3D%28a%2F3%29x%5E3%2B%5B%28b-1%29%2F2%5Dx%5E2%2Bx%E7%9A%84%E4%B8%A4%E4%B8%AA%E6%9E%81%E5%80%BC%E7%82%B9%2C%28a.b%E5%B1%9E%E4%BA%8ER+a%3E0%29+++++f%28x%29%E7%9A%84%E5%AF%BC%E6%95%B0%E6%98%AFy%3Df%27%28x%29+++++++++++%E4%B8%80+%E5%A6%82%E6%9E%9Cx1)
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