What are the three function of tail rotor in helicopter?

The tail rotor of a helicopter serves three primary functions: it counteracts the torque produced by the main rotor, preventing the helicopter from spinning uncontrollably in the opposite direction. It also provides directional control by allowing the pilot to adjust the yaw, enabling the helicopter to turn left or right. Additionally, the tail rotor contributes to stability during flight, helping maintain the helicopter's orientation and balance.