x = A*cos(w*t) ①y = B*cos(w*t+a) ②由①得:cos电际空较植适毛排(w*t) = x/A ③由②得:y = B*cos(w*t)*cos(a)-B*sin(w*t)*sin(a)sin(w*t) = (鸡准哥游剂冲程抗B*cos(a)*x/A - y)/(B*sin(a)) ④注意伟策告:cos(w*t)^2 + sin(w*t)^2 = 1将③④代入上式:(x实多造超冷环于民范拿又/A)^2 + ((B*cos(a)*x/A - y)/(B*sin(a)))^2 = 1 ⑤将a = pi/3B = A代入⑤:4/3*氧笑x^2/A^2-4/3/A^2*x*y+4/额案基头般其盟著3/A^2*y^2 = 1此即所求的 质点的轨迹方程 。这是一个倾斜的椭圆。