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Mathematics
Problem
Consider the ellipse
4
x
2
+
9
y
2
=
36
4x^{2}+9y^{2}=36
4
x
2
+
9
y
2
=
36
. Which of the following points has a vertical tangent? a)
(
0
,
2
)
(0,\,2)
(
0
,
2
)
b)
(
3
,
0
)
(3,\,0)
(
3
,
0
)
c)
(
2
,
2
)
(2,\,\sqrt{2})
(
2
,
2
)
d)
(
1
,
4
2
3
)
(1,\,\frac{4\sqrt{2}}{3})
(
1
,
3
4
2
)
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