Respuesta :

If a point
(
x
,
y
)
is written as
(
r
,
θ
)
in polar coordinates, then
x
=
r
o
s
θ
and
y
=
r
sin
θ
.
As such in polar form equation
x
=

3
can be written as
r
cos
θ
=

3
or
r
=

3
cos
θ