Selesaikan untuk r (complex solution)
r=\left(3-\frac{3}{2}i\right)e^{i\theta }+\left(3+\frac{3}{2}i\right)e^{-i\theta }
Selesaikan untuk θ (complex solution)
\theta =-i\ln(\frac{\left(-2-i\right)\sqrt{r^{2}-45}+\left(2+i\right)r}{15})+2\pi n_{1}\text{, }n_{1}\in \mathrm{Z}
\theta =-i\ln(\left(\frac{2}{15}+\frac{1}{15}i\right)\left(\sqrt{r^{2}-45}+r\right))+2\pi n_{2}\text{, }n_{2}\in \mathrm{Z}
Selesaikan untuk r
r=3\left(\sin(\theta )+2\cos(\theta )\right)
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