15
| ||
7 |
AC |
PC |
AC |
PC |
PB |
PA |
3 |
5 |
4 |
5 |
4 |
3 |
PB |
PC |
3 | ||||
|
7
| ||
10 |
| ||
10 |
1 |
7 |
tanα-tan(α-β) |
1+tanαtan(α-β) |
π |
2 |
π |
4 |
AC |
PC |
PC |
PA |
PC |
PC |
PA |
PC |
15
| ||
7 |
15
| ||
7 |
| ||
2 |
75 |
49 |
π |
4 |
AC |
PC |
75 |
49 |
a |
b |
c |
a |
b |
c |
0 |
a |
b |
c |
b |
c |
a |
a |
3 |
b |
3 |
a |
b |
AM |
AM |
AN |
A.3 | B.2
| C.6 | D.9 |
a |
b |
a |
b |
a |
b |
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