6.2 Trigonometric Functions: Unit Circle Approach/59

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 -135^\circ }

<math> sin(=135^\circ)=-(\frac{-\sqrt{2}}{2}) <\math>