A.(1,2) | B.[1,+∝) | C.(1,+∝) | D.(1,2)∪(2.,+∝) |
sin(cosx) |
A.R | B.[2kπ,2kπ+
| ||||||
C.[2kπ-
| D.[2kπ-
|
1 |
2 |
1 |
2 |
1 |
x |
1 |
2 |
A.①② | B.③④ | C.①③ | D.②④ |
a |
b |
| ||||
|
|
A.(-∞,2
| B.[0,
| C.[-
| D.[2
|
1-2008x |
A.(-∞,0] | B.[0,+∞) | C.(-∞,0) | D.(-∞,+∞) |
A.最大值-2,最小值-18 | B.最大值-6,最小值-18 |
C.最大值-6,最小值-11 | D.最大值-2,最小值-11 |
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