π |
6 |
11π |
12 |
7π |
12 |
π |
5 |
π |
6 |
2π |
3 |
a2+b2 |
π |
6 |
π |
6 |
π |
2 |
π |
6 |
a2+b2 |
π |
6 |
a2+b2 |
π |
6 |
11π |
12 |
a2+b2 |
11π |
12 |
π |
6 |
7π |
10 |
π |
5 |
a2+b2 |
π |
4 |
π |
2 |
A.y=sinx | B.y=cosx | C.y=sin2x | D.y=cos2x |
π |
3 |
A.关于原点成中心对称的图形 | ||
B.关于y轴成轴对称的图形 | ||
C.关于点(
| ||
D.关于直线x=
|
x+α |
3 |
A.
| B.
| C.
| D.
|
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