 
                 
                InterviewSolution
 Saved Bookmarks
    				| 1. | Two systems of rectangular axes have the same origin. If a plane cuts them at distances a, b, c and a_1, b_1, c_1respectively from the origin, then a^(-2) + b^(-2) + c^(-2) | 
| Answer» `a_(1)^(-2) + b_(1)^(-2) + c_(1)^(-2)`  | |