3 |
3 |
. |
AB |
. |
AC |
2 |
3 |
3 |
π |
3 |
2π |
2 |
π |
3 |
π |
3 |
π |
3 |
π |
3 |
1 |
2 |
π |
3 |
5π |
6 |
π |
4 |
AB |
AC |
AB |
AC |
2 |
AB |
AC |
1 |
2 |
AB |
AC |
| ||
2 |
π |
3 |
π |
6 |
A.π | B.2π | C.4π | D.8π |
π |
3 |
3 |
π |
4 |
π |
6 |
π |
2 |
A.最小正周期为π的奇函数 | ||
B.最小正周期为π的偶函数 | ||
C.最小正周期为
| ||
D.最小正周期为
|
3 |
π |
3 |
π |
3 |
BA |
BC |
9 |
2 |
3 |
π |
4 |
3π |
4 |
A.y=sin2x | B.y=cos2x | C.y=-sin2x | D.y=-cos2x |
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