TrigonometricFunctions.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TrigonometricFunctions : MonoBehaviour
{
    [SerializeField] private Transform _obj; //объект, который будет двигаться 
    [SerializeField] private float _speed = 2.0f; 
    [SerializeField] private float _amplitudeX = 1.0f;
    [SerializeField] private float _amplitudeY = 1.0f;
    private float _angle = 0;

    private void Update()
    {
        _angle += Time.deltaTime * _speed;
        _obj.transform.position = new Vector3(_amplitudeX * Mathf.Cos(_angle), _amplitudeY * Mathf.Cos(_angle) * Mathf.Sin(_angle), 0);
    }
}