Solve y=1/sqrt{1-{left(frac{x{83333}right)}^2}}

$$y= \frac{ 1 }{ \sqrt{ 1- { \left( \frac{ x }{ 83333 } \right) }^{ 2 } } }$$

Solve for x (complex solution)

$$x=-83333\sqrt{1-\frac{1}{y^{2}}}$$

$$x=83333\sqrt{1-\frac{1}{y^{2}}}\text{, }arg(\sqrt{\frac{1}{y^{2}}}y)<\pi \text{ and }y\neq 0$$

Solve for y (complex solution)

$$y=83333\left(6944388889-x^{2}\right)^{-\frac{1}{2}}$$

$$x\neq 83333\text{ and }x\neq -83333$$

Solve for x

$$x=\frac{83333\sqrt{y^{2}-1}}{y}$$

$$x=-\frac{83333\sqrt{y^{2}-1}}{y}\text{, }y\geq 1$$

Solve for y

$$y=\frac{83333}{\sqrt{6944388889-x^{2}}}$$

$$|x|<83333$$