焦距等于2根号3,2c=2√3,则c=√3,c^2=3焦点在y轴上的椭圆标准方程为y^2/b^2+x^2/a^2=1 (b>a>0)已知在椭圆中,b^2-a^2=c^2=3,则b^2=a^2 +3椭圆方程为y^2/(a^2 +3)+x^2/a^2=1已知该椭圆方程为y^2/(a^2 +3)+x^2/a^2=1通...