سلسلة القطوع المخروطية Conic Sections

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x-2)^2/8+(y+1)^2/16=1)


a^2=16 and b^2=8

the length of latus rectum =2b^2/a=4

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x²/7 + y²/16= 1
a ² =16....a=4 ,,,,, b²=7
c²=16-7=9 ...... c=3
e=c/a ......e=3/4 < 1