题目内容
A.5,3,0.8
B.10,6,0.8
C.5,3,0.6
D.10,6,0.6
B
A.5,3,0.8 B.10,6,0.8
C.5,3,0.6 D.10,6,0.6
A.5、3、0.8 B.10、6、0.8
C.5、3、0.6 D.10、6、0.6
A.5,3,0.8 B.10,6,0.8
椭圆25x2+9y2=225的长轴长、短轴长、离心率依次是( )