InterviewSolution
Saved Bookmarks
| 1. |
If cos (x-y) cos(z-t) = cos(x+y) cos (z+t), then tanx tany + tanz tant is equal to |
|
Answer» If cos (x-y) cos(z-t) = cos(x+y) cos (z+t), then tanx tany + tanz tant is equal to |
|