圆锥曲线焦点弦性质的推广.pdf

2 0 0 3 6 ( ) u n e 20 0 3 J . . . 2 o u r n a o u ya n g e a e e r s o e g e a tu ra e e n e e o 0 o 20 J l f F T h C ll (N l S i ) V l 2 N 2 ( 23 30 4 0) , 1 . ; , . : 1 2 2 : 1 0 0 4 4 9 2 0 0 0 2 0 0 0 0 3 0 A 2 ( ) , 1 1 1 ]l [ 11 ]1