| ||
10 |
2
| ||
5 |
OC |
OA |
π |
4 |
| ||
10 |
2
| ||
5 |
1-cos2α |
7
| ||
10 |
1-cos2β |
| ||
5 |
| ||
10 |
2
| ||
5 |
7
| ||
10 |
| ||
5 |
9
| ||
50 |
OC |
OA |
π |
4 |
OC |
OA |
OC |
OA |
| ||
10 |
7
| ||
10 |
π |
4 |
| ||||
|
|
(m,n)•(
| ||||||||
1×1 |
| ||
2 |
| ||
10 |
7
| ||
10 |
|
|
4 |
5 |
3 |
5 |
3 |
5 |
4 |
5 |
1 |
2 |
cosα+sinα |
cosα-sinα |
A.2 | B.-2 | C.3 | D.-3 |
3 |
4 |
π |
4 |
2 |
3 |
A.锐角三角形 | B.直角三角形 | C.钝角三角形 | D.不确定 |
3 |
4 |
1 |
tanA |
1 |
tanC |
BA |
BC |
3 |
2 |
1+
| ||||
sin(x+
|
3 |
5 |
© 2017-2019 超级试练试题库,All Rights Reserved.