a∧n×u(n)n重卷积公式b∧n×u(n)

a∧n+b∧n等于什么?_高中数学吧_百度贴吧
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a∧n+b∧n等于什么?收藏
a∧n+b∧n等于什么?
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A^n-B^n=(A-B)(A^(n-1)+A^(n-2)B+A^(n-3)B^2+...+AB^(n-2)+B^(n-1))A^n+B^n
当n为正奇数时a^n+b^n=(a+b)(a^(n-1)-a^(n-2)b+a^(n-3)b^2+……-ab^(n-2)+b^(n-1),但是当n为偶数时,是不能用这个式子分解的..
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很像排列组合
下面我给出的是:牛顿二项式展开式,如果你想具体了解,你可以去百度百科看看。然后由上面的变形可得:
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