Solve for A, x
x=-\frac{\sqrt{10\sqrt{13}+2}}{6}\text{, }n_{2}\in \mathrm{Z}\text{, }\nexists n_{1}\in \mathrm{Z}\text{ : }2\pi n_{2}-\arcsin(\frac{\sqrt{2\left(5\sqrt{13}-1\right)}}{18})+2\pi =\pi n_{1}\text{, }A=2\pi n_{2}-\arcsin(\frac{\sqrt{2\left(5\sqrt{13}-1\right)}}{18})+2\pi \text{, }n_{2}\in \mathrm{Z}
x=\frac{\sqrt{10\sqrt{13}+2}}{6}\text{, }n_{3}\in \mathrm{Z}\text{, }\nexists n_{1}\in \mathrm{Z}\text{ : }2\pi n_{3}+\arcsin(\frac{\sqrt{2\left(5\sqrt{13}-1\right)}}{18})=\pi n_{1}\text{, }A=2\pi n_{3}+\arcsin(\frac{\sqrt{2\left(5\sqrt{13}-1\right)}}{18})\text{, }n_{3}\in \mathrm{Z}
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