ln(2n^2-n+1)-2ln n.当n趋于正无穷是的极限

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ln(2n^2-n+1)-2lnn.当n趋于正无穷是的极限ln(2n^2-n+1)-2lnn.当n趋于正无穷是的极限ln(2n^2-n+1)-2lnn.当n趋于正无穷是的极限ln(2n^2-n+1)-

ln(2n^2-n+1)-2ln n.当n趋于正无穷是的极限
ln(2n^2-n+1)-2ln n.当n趋于正无穷是的极限

ln(2n^2-n+1)-2ln n.当n趋于正无穷是的极限
ln(2n^2-n+1)-2ln n=ln((2n^2-n+1)/n^2)=ln(2-1/n+1/n^2)--->2
答案:2