Solución
Hipérbola; forma polar
r
2
c
o
s
(
2
θ
)
=
16
r^2cos(2θ) = 16
r
2
cos
(
2
θ
)
=
16
o
r
2
=
16
s
e
c
θ
r^2 = 16secθ
r
2
=
16
sec
θ
.