#1
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#2
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µÑǶѴ令×Í $0$ ¤ÃѺ ´éÇÂÊٵùÕé
$a_n=678-\dfrac{7643}{5}n+\dfrac{3724}{3}n^2-\dfrac{2779}{6}n^3+\dfrac{242}{3}n^4-\dfrac{157}{30}n^5$
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site:mathcenter.net ¤Ó¤é¹ |
#3
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#4
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#5
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#6
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