lim |
n→∞ |
1 |
n2+1 |
2 |
n2+1 |
3 |
n2+1 |
2n |
n2+1 |
1 |
n2+1 |
2 |
n2+1 |
3 |
n2+1 |
2n |
n2+1 |
1+2+3+…+2n |
n2+1 |
2n2+n |
n2+1 |
lim |
n→∞ |
1 |
n2+1 |
2 |
n2+1 |
3 |
n2+1 |
2n |
n2+1 |
lim |
n→∞ |
lim |
n→∞ |
2n2+n |
n2+1 |
x2 |
4 |
1 |
2 |
A.1个 | B.2个 | C.3个 | D.4个 |
A.a+b+c | B.8a+4b+c | C.3a+2b | D.c |
lim |
n→∞ |
3n+1 |
3n+2n |
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