defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Trigonometry Inverse Trigonometric Functions
Let k > 0 and t = sech-1 \(\left( {\frac{1}{2}} \right)\) - cosech-1 \(\left( {\frac{3}{k}} \right)\). If 3et = 2 + √3, then k =
1
2
2
4
3
3√3
4
3√2