a |
b |
1 |
2 |
a |
a |
b |
π |
2 |
a |
a |
b |
1 |
2 |
1-cos2x |
2 |
3 |
2 |
1 |
2 |
1 |
2 |
| ||
2 |
π |
4 |
2π |
2 |
π |
4 |
π |
2 |
kπ |
2 |
π |
8 |
π |
4 |
π |
2 |
π |
4 |
3π |
2 |
π |
8 |
5 |
8 |
π |
2 |
π |
4 |
π |
4 |
5 |
4 |
| ||
2 |
π |
4 |
| ||
2 |
5 |
2 |
| ||
2 |
3 |
2 |
3 |
4 |
3 |
π |
6 |
π |
6 |
π |
6 |
. |
| . |
. |
| . |
A.x=
| B.x=
| C.x=π | D.x=0 |
π |
6 |
π |
3 |
m-1 |
m+1 |
A.m<-1 | B.3<m≤7+4
| ||
C.m>3 | D.3<m<7+4
|
A.1 | B.
| C.
| D.2 |
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