π |
6 |
π |
6 |
π |
6 |
A.2或0 | B.-2或2 | C.0 | D.-2或0 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
x |
3 |
π |
6 |
π |
4 |
A.y=2cos(
| B.y=2cos(
| ||||||||
C.y=2cos(
| D.y=2cos(
|
π |
3 |
A.关于点(
| B.关于直线x=
| ||||
C.关于点(
| D.关于直线x=
|
π |
4 |
π |
8 |
A.±1 | B.-3或1 | C.±3 | D.-1或3 |
A.ω=1,φ=
| B.ω=1,φ=-
| C.ω=
| D.ω=
|
1 |
2 |
π |
6 |
A.y=sin(2x-
| B.y=sin(2x+
| ||||
C.y=sin2x+2 | D.y=sin(2x-
|
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