engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Trigonometry Trigonometric Functions
Let ‘S’ be the set of all α ∈ R such that the equation cos 2x + α sin x = 2α – 7 has a solution. Then S is equal to:
1
R
2
[1, 4]
3
[3, 7]
4
[2, 6]