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Question

The coordinates of the foci of the ellipse x236+y216=1 is/are 


A
(5,0)
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B
(25,0)
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C
(5,0)
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D
(25,0)
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Solution

The correct options are
B (25,0)
D (25,0)
Given parabola
x236+y216=1
Which is in the form of 
x2a2+y2b2=1
Where a=6,b=4
e2=1b2a2=11636e=53
Foci =(±ae,0)=(±25,0)

Mathematics

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