\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)
\(\tan^{-1}\left( \frac{x}{y} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \frac{y}{x} + \sqrt{y^2 - x^2} \right)\)
\(\tan^{-1}\left( \sqrt{y} - \frac{x}{y} + x \right)\)
\(\tan^{-1}\left( \sqrt{y} + \frac{x}{y} - x \right)\)
\(2\tan^{-1}\left( \frac{x}{y} + \sqrt{x^2 - y^2} \right)\)