A.向左平移
| B.向右平移
| ||||
C.向左平移
| D.向右平移
|
2 |
π |
4 |
2 |
π |
4 |
π |
2 |
π |
3 |
A.ω=2,φ=
| B.ω=2,φ=
| C.ω=
| D.ω=
|
π |
6 |
3 |
x |
1 |
3 |
1 |
4 |
1 |
3 |
π |
4 |
A.y=2cos2x | B.y=cos2x | C.y=-cos2x | D.y=-2cos2x |
π |
3 |
π |
6 |
A.y=cosx | B.y=sin | C.y=-cosx | D.y=-sinx |
1 |
2 |
π |
6 |
A.
| B.
| C.1 | D.2 |
© 2017-2019 超级试练试题库,All Rights Reserved.