即整理可得 x2+y2−
| 2(1−λ) |
| 1+λ |
| 2(5+λ) |
| 1+λ |
| 8(3+λ) |
| 1+λ |
| 1 |
| 1+λ |
| 1 |
| 1+λ |
| 2+5λ |
| 1+λ |
所以可知圆心坐标为 (
| 1 |
| 2(1+λ) |
| 1 |
| 2(1+λ) |
因为圆心在直线3x+4y-1=0上,
所以可得3×
| 1 |
| 2(1+λ) |
| 1 |
| 2(1+λ) |
解得λ=-
| 3 |
| 2 |
将λ=-
| 3 |
| 2 |
故答案为:x2+y2+2x-2y-11=0.
| 2(1−λ) |
| 1+λ |
| 2(5+λ) |
| 1+λ |
| 8(3+λ) |
| 1+λ |
| 1 |
| 1+λ |
| 1 |
| 1+λ |
| 2+5λ |
| 1+λ |
| 1 |
| 2(1+λ) |
| 1 |
| 2(1+λ) |
| 1 |
| 2(1+λ) |
| 1 |
| 2(1+λ) |
| 3 |
| 2 |
| 3 |
| 2 |