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Problem
Problem
The angle between the curves
x
2
+
4
y
2
=
32
x^2 + 4y^2 = 32
x
2
+
4
y
2
=
32
and
x
2
y
2
=
12
x^2 y^2 = 12
x
2
y
2
=
12
, is
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