极限练习题lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)]
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极限练习题lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)]极限练习题lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)]极限练习题lim(n->∞)[(n^2+3n-8
极限练习题lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)]
极限练习题lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)]
极限练习题lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)]
lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)] =lim(n->∞)[(1+3(1/n)-8(1/n^2))/(4+2(1/n)+3(1/n^2))] =1/4
答案=1/4
无穷的,上下都是关于n的多项式。如果最高次数相等,则等于对应的系数之比,如果分子次数少于分母,则为0,否则不存在
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