(2011•北京)已知函数f(x)=(x-k)ex.(Ⅰ)求f(x)的单调区间;(Ⅱ)求f(x)在区间[0,1]上的最小值.第二 当k-1≤0,即k≤1时 f(x)为什么在区间[0,1]上单调递增?当k-1≥1,即k≥2时
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![(2011•北京)已知函数f(x)=(x-k)ex.(Ⅰ)求f(x)的单调区间;(Ⅱ)求f(x)在区间[0,1]上的最小值.第二 当k-1≤0,即k≤1时 f(x)为什么在区间[0,1]上单调递增?当k-1≥1,即k≥2时](/uploads/image/z/15236901-45-1.jpg?t=%EF%BC%882011%26%238226%3B%E5%8C%97%E4%BA%AC%EF%BC%89%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3D%EF%BC%88x-k%EF%BC%89ex%EF%BC%8E%EF%BC%88%E2%85%A0%EF%BC%89%E6%B1%82f%EF%BC%88x%EF%BC%89%E7%9A%84%E5%8D%95%E8%B0%83%E5%8C%BA%E9%97%B4%EF%BC%9B%EF%BC%88%E2%85%A1%EF%BC%89%E6%B1%82f%EF%BC%88x%EF%BC%89%E5%9C%A8%E5%8C%BA%E9%97%B4%5B0%2C1%5D%E4%B8%8A%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%EF%BC%8E%E7%AC%AC%E4%BA%8C+%E5%BD%93k-1%E2%89%A40%2C%E5%8D%B3k%E2%89%A41%E6%97%B6+f%EF%BC%88x%EF%BC%89%E4%B8%BA%E4%BB%80%E4%B9%88%E5%9C%A8%E5%8C%BA%E9%97%B4%5B0%2C1%5D%E4%B8%8A%E5%8D%95%E8%B0%83%E9%80%92%E5%A2%9E%3F%E5%BD%93k-1%E2%89%A51%2C%E5%8D%B3k%E2%89%A52%E6%97%B6)
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(2011•北京)已知函数f(x)=(x-k)ex.(Ⅰ)求f(x)的单调区间;(Ⅱ)求f(x)在区间[0,1]上的最小值.第二 当k-1≤0,即k≤1时 f(x)为什么在区间[0,1]上单调递增?当k-1≥1,即k≥2时
(2011•北京)已知函数f(x)=(x-k)ex.
(Ⅰ)求f(x)的单调区间;
(Ⅱ)求f(x)在区间[0,1]上的最小值.
第二 当k-1≤0,即k≤1时 f(x)为什么在区间[0,1]上单调递增?
当k-1≥1,即k≥2时 为什么函数f(x)在区间[0,1]上单调递减
(2011•北京)已知函数f(x)=(x-k)ex.(Ⅰ)求f(x)的单调区间;(Ⅱ)求f(x)在区间[0,1]上的最小值.第二 当k-1≤0,即k≤1时 f(x)为什么在区间[0,1]上单调递增?当k-1≥1,即k≥2时
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