Hi frnz this is on my frnd's request..................ellipse......

 

 

Table

 

FORM....................................ALONG X AXIS (a>b).....................Y axis (b>a)

 

 

1) centre.................................(0 , 0)...........................................(0 , 0)

 

 

2)Foci....................................(+- ae, 0).......................................(0 , + - ae)

 

 

3)vertices................................( +_ a , 0)......................................(0 , +_a)

 

 

4)length of major axis...............  2a   .............................................  2a

 

 

5)length of minor axis...............   2b  ..............................................  2b

 

 

6)eqn of major axis................ y = 0............................................... x = 0

 

 

7)eqn of minor axis............... x = 0................................................ y = 0

 

 

8)eqn. of directrix.................. x = +_ a/e........................................y = +_a/e

 

 

9)lngth of L.R.......................2b² / a..............................................2b² / a

 

 

10)length of latus recta........ x = +_ae..........................................y = +_ae