lim |
n→∞ |
2n2+n+3 |
(2n+1)2 |
lim |
n→∞ |
2n2+n+3 |
(2n+1)2 |
lim |
n→∞ |
2+
| ||||
4+
|
2+0+0 |
4+0+0 |
1 |
2 |
1 |
2 |
A.(2,8) | B.(6,48) | C.(4,24) | D.不确定 |
lim |
n→∞ |
an2+bn |
n+1 |
lim |
n→+∞ |
2an+3bn |
an+1bn+1 |
x |
A.-2 | B.2 | C.
| D.-
|
lim |
x→0 |
f(1)-f(1-2x) |
2x |
A.2 | B.-1 | C.1 | D.-2 |
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