m |
3 |
n |
m |
n |
A |
2 |
1 |
2 |
| ||
2 |
2 |
m |
3 |
n |
m |
n |
3 |
| ||
2 |
1 |
2 |
1 |
2 |
π |
6 |
1 |
2 |
π |
3 |
π |
6 |
π |
6 |
2π |
3 |
A |
2 |
1 |
2 |
| ||
2 |
2 |
A |
2 |
π |
6 |
1 |
2 |
1 |
2 |
| ||
2 |
π |
6 |
| ||
2 |
π |
6 |
π |
6 |
7π |
6 |
π |
6 |
π |
2 |
2 |
π |
6 |
bsinA |
a |
| ||
2 |
π |
4 |
3π |
4 |
7π |
12 |
π |
12 |
1 |
2 |
| ||
2 |
7π |
12 |
1+
| ||
4 |
1 |
2 |
| ||
2 |
π |
12 |
| ||
4 |
A.等腰三角形 | B.直角三角形 |
C.等腰或直角三角形 | D.等腰直角三角形 |
2 |
2 |
π |
3 |
3 |
3 |
π |
3 |
1 |
3 |
6 |
| ||
10 |
| ||
5 |
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