Respuesta :

[tex]\begin{gathered} We\text{ can use a calculator to evaluate the given questions.} \\ tan^{-1}(1)\text{ = }\frac{\pi}{4} \\ tan^{-1}(-\sqrt{3})\text{ = }\frac{-\pi}{3} \\ tan^{-1}(-1)\text{ = }\frac{-\pi}{4} \end{gathered}[/tex]