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Mathematics
Problem
An ellipse has centre at the origin, major axis along the y-axis, semi-major axis length
6
6
6
, and semi-minor axis length
4
4
4
. Which of the following are its vertices? a)
(
±
6
,
0
)
(\pm 6,\,0)
(
±
6
,
0
)
b)
(
0
,
±
4
)
(0,\,\pm 4)
(
0
,
±
4
)
c)
(
0
,
±
6
)
(0,\,\pm 6)
(
0
,
±
6
)
d)
(
0
,
±
20
)
(0,\,\pm \sqrt{20})
(
0
,
±
20
)
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