6.2 Trigonometric Functions: Unit Circle Approach/57

$-{\frac {\pi }{6}}=-30^{\circ }$
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle 360^{\circ} -30^{\circ} = 330^{\circ} = \frac{\sqrt{3}}{2} , -\frac{1}{2}}
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle cos(-\frac {\pi}{6})= \frac{\frac{\sqrt{3}}{2}}{\cancel{1}} = \frac{\sqrt{3}}{2}}
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle sin(-\frac {\pi}{6})= \frac{-\frac{1}{2}}{\cancel{1}} = -\frac{1}{2}}
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle tan(-\frac {\pi}{6})= \frac{-\frac{1}{\cancel{2}}}{\frac{\sqrt{3}}{\cancel{2}}}\cdot(2) = -\frac{1}{\sqrt{3}} \cdot ({\sqrt{3}}) = \frac{-\sqrt{3}}{3}}
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle sec(-\frac {\pi}{6})= \frac{1}{\frac{\sqrt{3}}{\cancel{2}}} \cdot (2) = \frac{2}{\sqrt{3}} \cdot (\sqrt{3}) = \frac {2\sqrt{3}}{3}}
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle csc(-\frac {\pi}{6})= \frac{1}{-\frac{1}{\cancel{2}}} \cdot (2) = \frac{2}{-1} = -2 }
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle cot(-\frac {\pi}{6})= \frac{\frac{\sqrt{3}}{2}}{-\frac{1}{2}} \cdot (2) = \frac{\frac{2}{\sqrt{3}}}{-2} = -\sqrt{3}}