b |
x |
5 |
2 |
4a |
3 |
1 |
2 |
b |
x |
5 |
2 |
|
1 |
x |
1 |
x2 |
1 |
x1 |
x1-x2 |
x1x2 |
1 |
x1x2 |
(x2-x1)(x1x2-1) |
x1x2 |
4a |
3 |
1 |
2 |
4a |
3 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
5 |
2 |
10 |
3 |
1 |
2 |
10 |
3 |
4a |
3 |
10 |
3 |
2 |
π |
2 |
3 |
2 |
1-x2 |
x2 |
1 |
2 |
A.(2,7) | B.(-2,3) | C.(-6,-1) | D.(0,5) |
|
A.9 | B.11 | C.13 | D.15 |
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