Saved Bookmarks
| 1. |
The value of x satisfying `sin^(-1)(sqrt((3x-1)/(25)))+sin^(-1)(sqrt((3x+1)/(25)))=(pi)/(2)` lies in the intervalA. (1,2)B. (2,3)C. (3,4)D. (4,5) |
|
Answer» Correct Answer - D `sin^(-1)(sqrt((3x-1)/(25)))+sin^(-1)(sqrt((3x + 1)/(25)))=(pi)/(2)` `rArr sin^(-1)(sqrt((3x-1)/(25)))=(pi)/(2)-sin^(-1)(sqrt((3x+1)/(25)))=cos^(-1)(sqrt((3x+1)/(25)))` `rArr sin^(-1)(sqrt((3x-1)/(25)))=sin^(-1)(sqrt(1-(3x+1)/(25)))` `rArr sin^(-1) (sqrt((3x-1)/(25)))=sin^(-1)(sqrt((24-3x)/(25)))` `rArr (3x-1)/(25)=(24-3x)/(25)` `rArr x = (25)/(6)` |
|