PG entrance exam CUET PG 2025 Mock Test Mathematical Science Ordinary Differential Equations Orthogonal Trajectories
The orthogonal trajectory of the cardioid r = a(1 - cos θ), a being the parameter is:
1
r = a(1 - cos θ)
2
r = a cos θ
3
r = a(1 + cos θ)
4
r = a(1 + sin θ)