π |
4 |
2π |
ω |
π |
4 |
π |
4 |
π |
4 |
π |
2 |
π |
4 |
π |
4 |
2 |
π |
4 |
π |
4 |
2 |
2 |
2 |
6 |
3 |
2 |
|OP|2+|OQ|2-|PQ|2 |
2|OP||OQ| |
(
| ||||||
2
|
| ||
3 |
1-cos2∠POQ |
| ||
3 |
1 |
2 |
1 |
2 |
6 |
2 |
| ||
3 |
2 |
π |
2 |
π |
4 |
π |
4 |
2 |
π |
4 |
π |
4 |
2 |
2 |
2 |
| ||
2 |
2 |
|4+2| | ||
|
3 |
6 |
1 |
2 |
1 |
2 |
6 |
3 |
2 |
π |
6 |
A.
| B.
| C.
| D.
|
. |
| . |
A.
| B.
| C.
| D.
|
π |
3 |
π |
3 |
1 |
2 |
A.[(4k-1)π,(4k+l)π],k∈Z | B.[-
| ||||||||
C.[-
| D.[-
|
π |
3 |
π |
6 |
π |
2 |
A.向左平移
| B.向右平移
| ||||
C.向左平移
| D.向右平移
|
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