π |
8 |
A.
| B.-
| C.
| D.
|
π |
8 |
π |
8 |
π |
2 |
π |
4 |
π |
4 |
π |
4 |
3 |
π |
3 |
A.
| B.
| C.
| D.
|
π |
2 |
A.y=cos2x+1 | B.y=-cos2x+1 | C.y=sin2x+1 | D.y=-sin2x+1 |
π |
8 |
π |
8 |
π |
8 |
A.-1 | B.±5 | C.-5或-1 | D.5或1 |
π |
4 |
π |
4 |
π |
4 |
A.0 | B.3 | C.-3 | D.3或-3 |
A.a=1,ω=
| B.a=-1,ω=
| C.a=2,ω=
| D.a=2,ω=
|
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