[[1]]可设椭圆方程为(x²/a²)+(y²/b²)=1 (a＞b＞0)由题设可得a-c=√3b=(√3)ca²=b²+c²解得:a=2√3,b=3c=√3∴椭圆方程为(x²/12)+(y²/9)=1[[[2]]]易知,F1(-√3,0),F2(√...