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
|
1 |
2 |
sin2x(1-cos2x) |
2 |
sin4x |
4 |
sin2x-sin2xcos2x |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
3 |
m |
3 |
n |
m |
n |
A |
2 |
| ||
2 |
A.2sin15°cos15° | B.sin215°-cos215° |
C.1-2sin215° | D.sin215°+cos215° |
3 |
π |
2 |
AB |
OC |
AC |
BD |
OC |
CE |
π |
2 |
1 |
3 |
θ |
2 |
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