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Mathematics
Mathematics
Problem
For the curve
x
2
+
y
2
=
4
x^{2}+y^{2}=4
x
2
+
y
2
=
4
, which point listed below has a vertical tangent line? a)
(
0
,
2
)
(0,\,2)
(
0
,
2
)
b)
(
2
,
2
)
\left(\sqrt{2},\,\sqrt{2}\right)
(
2
,
2
)
c)
(
2
,
0
)
(2,\,0)
(
2
,
0
)
d)
(
−
2
,
2
)
\left(-\sqrt{2},\,\sqrt{2}\right)
(
−
2
,
2
)
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