Match each graph with its equation.
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  1. r=3cos(3θ)\displaystyle {r}={3}{\cos{{\left({3}\theta\right)}}}
  2. r=1+2sin(θ)\displaystyle {r}={1}+{2}{\sin{{\left(\theta\right)}}}
  3. r=3cos(2θ)\displaystyle {r}={3}{\cos{{\left({2}\theta\right)}}}
  4. r=1+2cos(θ)\displaystyle {r}={1}+{2}{\cos{{\left(\theta\right)}}}
  5. r=3sin(2θ)\displaystyle {r}={3}{\sin{{\left({2}\theta\right)}}}