\left\{ \begin{array} { l } { b = \frac { - 23 } { 3 } a } \\ { \sqrt { ( a - 0 ) ^ { 2 } + ( b - 0 ) ^ { 2 } } = 8 ^ { n } } \end{array} \right.
Solve for b, a, n
b=\frac{23\sqrt{538}\times 8^{n}}{538}\text{, }a=-\frac{3\sqrt{538}\times 8^{n}}{538}\text{, }n\in \mathrm{R}
b=-\frac{23\sqrt{538}\times 8^{n}}{538}\text{, }a=\frac{3\sqrt{538}\times 8^{n}}{538}\text{, }n\in \mathrm{R}
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