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函数求极限:x趋近于1时,lim[(1/X-1)-(1/XXX-1)]
2个回答
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lim[(1/X-1)-(1/XXX-1)]
=lim[(1/(x-1)-1/(x³-1)]
=lim[(x²+x+1-1)/(x³-1)]
=lim[(x²+x)/(x³-1)]
=不存在
=lim[(1/(x-1)-1/(x³-1)]
=lim[(x²+x+1-1)/(x³-1)]
=lim[(x²+x)/(x³-1)]
=不存在
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