π |
12 |
π |
12 |
A.
| B.
| C.-
| D.
|
π |
12 |
π |
12 |
π |
12 |
π |
12 |
π |
12 |
π |
12 |
π |
6 |
1 |
2 |
π |
6 |
| ||
2 |
1 |
4 |
1+2
| ||
4 |
5 |
4 |
π |
2 |
A.-1 | B.0 | C.1 | D.2 |
a |
b |
a |
b |
A.2 | B.
| C.±1 | D.-1 |
A.等腰直角三角形 | B.等腰三角形 |
C.直角三角形 | D.等边三角形 |
4 |
5 |
3 |
5 |
π |
2 |
π |
2 |
A.
| B.-
| C.1 | D.-1 |
m |
3 |
n |
m |
n |
2
| ||
4R2 |
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