defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Mathematics Quadratic Equations Sum and Product of Roots
Let α and β are two real roots of the equation (k + 1) tan2 x − √2 λ tan x = 1 − k, where (k ≠ −1) and are real numbers. If tan2(α + β) = 50, then value of λ is
1
5√2
2
10√2
3
10
4
5