Solve 3 cos²(x) + 5 cos(x) - 2 = 0 for the interval 0≤x≤ 2π

Last updated: 7/31/2022

Solve 3 cos²(x) + 5 cos(x) - 2 = 0 for the interval 0≤x≤ 2π a) 1.231 and 5.052 b) 1.231 c) 1.231, 2.356, 2.759 and 5.052 d) 5.052