a+m |
b+m |
a |
b |
a |
c2 |
b |
c2 |
π |
2 |
2 |
sinx |
2 |
A.0个 | B.1个 | C.2个 | D.3个 |
a+m |
b+m |
a |
b |
b(a+m)-a(b+m) |
b(b+m) |
m(b-a) |
b(b+m) |
a+m |
b+m |
a |
b |
a+m |
b+m |
a |
b |
a |
c2 |
b |
c2 |
2 |
sinx |
2 |
t |
t×
|
2 |
2 |
t |
2 |
sinx |
2 |
3 |
3 |
A.3
| B.2
| C.3
| D.3
|
OA |
OB |
OA |
AB |
m |
A |
2 |
A |
2 |
n |
A |
2 |
A |
2 |
3 |
m |
n |
1 |
2 |
3 |
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