π |
3 |
π |
4 |
A.[-
| B.[-
| C.[0 ,
| D.[-
|
π |
3 |
π |
4 |
π |
4 |
π |
3 |
π |
6 |
π |
2 |
π |
6 |
π |
2 |
2π |
3 |
π |
6 |
π |
3 |
2 |
3 |
A.向左平移
| ||
B.向右平移
| ||
C.向左平移
| ||
D.向右平移
|
π |
4 |
π |
4 |
A.f(x)=sinx | B.f(x)=cosx | C.f(x)=sin4x | D.f(x)=cos4x |
π |
3 |
π |
3 |
π |
3ω |
π |
4 |
A.1 | B.2 | C.3 | D.4 |
π |
4 |
v |
A.45° | B.60° | C.120° | D.135° |
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