lim |
n→∞ |
1 |
x |
1 |
x2 |
1 |
xn |
A.2 | B.1 | C.
| D.
|
8 |
3 |
2 |
lim |
n→∞ |
1 |
x |
1 |
x2 |
1 |
xn |
lim |
n→∞ |
22n-1-a•3n+1 |
3n+1+a•22n |
lim |
n→∞ |
1 |
a2-a1 |
1 |
a3-a2 |
1 |
an+1-an |
A.2 | B.
| C.1 | D.
|
1 |
2 |
1 |
3 |
1 |
n |
1 |
2 |
nan-1 |
n+an-1 |
2b |
2+b[log2n] |
A.0 | B.-
| C.0或-
| D.0或1 |
π |
6 |
π |
6 |
| ||
2 |
A.3x+2y+
| B.3x-2y+
| ||||||||
C.3x-2y-
| D.3x+2y-
|
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