題目列表(包括答案和解析)
OA |
OB |
π |
6 |
2π |
3 |
OC |
OA |
OB |
OC |
0 |
OC |
OA |
OB |
π |
6 |
2π |
3 |
OA |
OB |
OC |
OC |
OA |
OB |
π |
6 |
2π |
3 |
OA |
OB |
OC |
0 |
OC |
OA |
OB |
2π |
3 |
OA |
OB |
OA |
OB |
OC |
0 |
OC |
如圖,射線,與軸正半軸的夾角分別為和,過點的直線分別交,于點,.
(1)當(dāng)線段的中點為時,求的方程;
(2)當(dāng)線段的中點在直線上時,求的方程.
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