1-(-2)n |
3 |
logax |
logaa2 |
logax |
logaa3 |
logax |
logaan |
1-(-2)n |
3 |
1-(-2)n |
3 |
1-(-2)n |
3 |
1-(-2)n |
3 |
|
|
|
1-
| ||
2 |
1+
| ||
2 |
| ||
2 |
a |
a |
1+
| ||
2 |
1-(-2)n |
3 |
|
|
|
|
1-
| ||
2 |
1+
| ||
2 |
| ||
2 |
a |
1+
| ||
2 |
a |
1+
| ||
2 |
1+
| ||
2 |
A.(-∞,3] | B.(3,4)∪(4,+∞) | C.(4,+∞) | D.(3,4) |
|
A.a+b | B.b-a | C.
| D.
|
2 |
x |
1 |
y |
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