lim |
x→∞ |
2 |
x-1 |
ax-1 |
3x |
A.1 | B.2 | C.3 | D.6 |
lim |
x→∞ |
2×3x+(ax-1)(x-1) |
3x(x-1) |
lim |
x→∞ |
ax2+(5-a)x+1 |
3x2-3x |
lim |
x→∞ |
a+
| ||||
3-
|
a |
3 |
A.9x+y-3=0 | B.9x-y-3=0 | C.9x+y-15=0 | D.9x-y-15=0 |
A.(1,0) | B.(-1,0) | C.(-1,-4) | D.(1,0)或(-1,0) |
|
lim |
n→∞ |
3bn+an |
bn-an |
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