defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Mathematics Trigonometry Inverse Trigonometric Functions
If \(\tan ^{ -1 }{ 2x } +\tan ^{ -1 }{ 3x } =\cfrac { \pi }{ 4 }\), then \(x=\)
1
\(-1\)
2
\(\cfrac { 1 }{ 3 }\)
3
\(\cfrac { 1 }{ 6 }\)
4
\(\cfrac { 1 }{ 2 }\)