x |
2 |
3 |
x |
2 |
x |
2 |
3 |
| ||
2 |
3 |
C |
2 |
3 |
C |
2 |
C |
2 |
3 |
3 |
π |
3 |
1 |
2 |
π |
3 |
π |
6 |
π |
6 |
| ||
2 |
1 |
2 |
1 |
2 |
3 |
a |
sinA |
b |
sinB |
c |
sinC |
1 |
0.5 |
a |
2 |
b |
2 |
ab |
4 |
| ||
2 |
| ||
2 |
1 |
2 |
1 |
2 |
3 |
π |
6 |
3 |
3 |
3 |
A.锐角三角形 | B.钝角三角形 | C.直角三角形 | D.无法确定 |
A |
2 |
2
| ||
5 |
AB |
AC |
2sin(A+
| ||||
1-cos2A |
m |
3 |
n |
m |
n |
π |
2 |
3 |
a |
b |
π |
2 |
a |
b |
1 |
2 |
| ||
10 |
π |
2 |
p |
q |
C-3B |
2 |
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