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Mathematics
Problem
Find the area of one loop of the lemniscate defined by
r
2
=
16
cos
2
θ
r^{2}=16\cos 2\theta
r
2
=
16
cos
2
θ
. a)
4
4
4
b)
2
π
2\pi
2
π
c)
8
8
8
d)
16
16
16
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