π |
4 |
A.函数y=f(x)的图象关于点(-
| ||
B.函数y=f(x)在区间(-
| ||
C.函数y=f(x+
| ||
D.将函数y=sin2x的图象向左平移
|
π |
4 |
1 |
2 |
π |
8 |
1 |
2 |
π |
8 |
1 |
2 |
π |
8 |
π |
8 |
π |
2 |
π |
4 |
π |
2 |
3π |
8 |
π |
8 |
3π |
8 |
π |
8 |
3π |
8 |
π |
8 |
π |
4 |
π |
2 |
kπ |
2 |
π |
8 |
kπ |
2 |
π |
8 |
π |
8 |
kπ |
2 |
π |
4 |
π |
2 |
|
|
|
|
A.①② | B.①③ | C.②③ | D.②④ |
1 |
2 |
A.1 | B.2 | C.3 | D.4 |
OM |
OA |
OB |
1 |
2 |
1 |
2 |
1 | ||
|
|
1 | ||
|
|
1 |
3 |
1 |
3 |
|
1 |
2 |
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