x^2+y^2=1 (1)x^2+y^2-x+√3y=0 (2)(1)代入(2):1-x+√3y=0x=1+√3y代入(1): 4y^2+2√3y=0 y1=0 y2=-√烂拦睁3/2x1=1 x2=-1/2方程饥岁组的解衡早:x1=1 y1=0 , x2=-1/2 y2=-√3/2