π |
4 |
π |
2 |
A.y=cos
| B.y=sin(
| ||||||
C.y=-sin(2x+
| D.y=sin(2x+
|
π |
4 |
x |
2 |
π |
4 |
π |
2 |
(x+
| ||
2 |
π |
4 |
x |
2 |
π |
2 |
x |
2 |
a |
π |
4 |
A.f(x)=-sin2x+1 | B.f(x)=sin2x+1 |
C.f(x)=-sin2x-1 | D.f(x)=sin2x-1 |
ωx |
2 |
π |
3 |
1 |
2 |
3 |
π |
4 |
π |
3 |
A.
| B.
| C.
| D.
|
π |
3 |
4π |
5 |
π |
4 |
A.sin2x | B.-cos2x | C.cos2x | D.-sin2x |
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