3 |
3 |
11π |
12 |
π |
12 |
5π |
12 |
π |
3 |
A.0 | B.1 | C.2 | D.3 |
3 |
3 |
3 |
π |
3 |
2π |
2 |
π |
6 |
π |
6 |
π |
2 |
5π |
6 |
kπ |
2 |
11π |
12 |
π |
3 |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
π |
6 |
π |
6 |
π |
6 |
1 |
4 |
A.等腰三角形 | B.等边三角形 |
C.直角三角形 | D.等腰直角三角形 |
π |
3 |
3 |
π |
6 |
π |
12 |
π |
2 |
sin(π-α)cos(2π-α)cos(-α+
| ||
tan(-α-π)sin(-π-α) |
π |
4 |
5 |
13 |
π |
4 |
cos2α | ||
cos(
|
1 |
2 |
| ||||
1+tanα |
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