

InterviewSolution
Saved Bookmarks
1. |
The value(s) of `x` satisfying `tan^(-1)(x+3)-tan^(-1)(x-3)=sin^(-1)(3/5)` may beA. `-2`B. `-1`C. 0D. 2 |
Answer» Correct Answer - C `tan^(-1)(x+3)-tan^(-1)(x-3)="sin"^(-1)(3)/(5)` `rArr "tan"^(-1)(6)/(1+x^(2)-9)="tan"^(-1)(3)/(4)` `rArr 24=3x^(2)-24` `rArr 3x^(2)=48 rArr x = pm 4` |
|