1 |
4 |
1 |
3 |
1 |
5 |
1 |
4 |
1 |
6 |
1 |
5 |
1 |
20 |
1 |
19 |
1 |
3 |
1 |
4 |
1 |
4 |
1 |
5 |
1 |
5 |
1 |
6 |
1 |
19 |
1 |
20 |
1 |
3 |
1 |
4 |
1 |
4 |
1 |
5 |
1 |
5 |
1 |
6 |
1 |
19 |
1 |
20 |
1 |
3 |
1 |
20 |
17 |
60 |
|a| |
a |
|b| |
b |
|ab| |
ab |
A.-2 | B.-0.25 | C.-4 | D.2.011 |
A.(-2
| B.(-
| ||||||||||
C.0.125+(-
| D.-|-7
|
2 |
5 |
A.a=2,b=5 | B.a=2,b=-3 | C.a=±2,b=-3 | D.a=-2,b=-3 |
a-|a| |
|a| |
A.0 | B.2 | C.0或2 | D.0或-2 |
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