InterviewSolution
Saved Bookmarks
| 1. |
मान लीजिए` x = 4 tan^(-1)(1/5) , y = tan^(-1) (1/70)` और ` z = tan^(-1)(1/99)` है । x - y किसके बराबर है ?A. `tan^(-1)((828)/845)`B. ` tan^(-1)((8287)/(8450))`C. ` tan^(-1)((8281)/(8450))`D. ` tan^(-1)((8287)/(8471))` |
|
Answer» Correct Answer - C ` x - y = tan^(-1)(120/119) - tan^(-1)(1/70)` ` = tan^(-1)((120/119-1/70)/(1+120/119xx1/70))` ` = tan^(-1)((8281)/(8450))` |
|