Match each equation with its graph
-
a
b
c
d
r
=
1
+
3
cos
(
3
θ
)
\displaystyle {r}={1}+{3}{\cos{{\left({3}\theta\right)}}}
r
=
1
+
3
cos
(
3
θ
)
-
a
b
c
d
r
=
θ
sin
(
θ
)
\displaystyle {r}=\theta{\sin{{\left(\theta\right)}}}
r
=
θ
sin
(
θ
)
-
a
b
c
d
r
=
5
sin
(
θ
2
)
\displaystyle {r}={5}{\sin{{\left(\frac{\theta}{{2}}\right)}}}
r
=
5
sin
(
2
θ
)
-
a
b
c
d
r
=
5
θ
\displaystyle {r}=\frac{{5}}{\sqrt{{\theta}}}
r
=
θ
5
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