| ||
2 |
| ||
2 |
1+cos2x |
2 |
| ||
2 |
1 |
2 |
1 |
2 |
| ||
2 |
1 |
2 |
π |
6 |
π |
6 |
1 |
2 |
π |
6 |
2π |
2 |
π |
2 |
π |
6 |
π |
2 |
π |
3 |
π |
6 |
π |
3 |
π |
6 |
1 |
7 |
π |
2 |
π |
3 |
A.-
| B.
| C.
| D.
|
π |
4 |
1 |
2 |
π |
2 |
2sin2α+sin2α | ||
cos(α-
|
A.最大值为7,最小值为
| ||
B.最大值为7,最小值为-5 | ||
C.最大值为7,最小值不存在 | ||
D.最大值不存在,最小值为0 |
A.
| B.1 | C.
| D.
|
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