Saved Bookmarks
| 1. |
If the circles x2+y2−8x−6y+21=0 and x2+y2+ay−15=0 are orthogonal then the value of a is |
|
Answer» If the circles x2+y2−8x−6y+21=0 and x2+y2+ay−15=0 are orthogonal then the value of a is |
|