6.2 Trigonometric Functions: Unit Circle Approach/32

Failed to parse (Conversion error. Server ("https://en.wikipedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle \sin(30^{\circ })-\cos(45^{\circ })={\frac {1}{2}}-{\frac {\sqrt {2}}{2}}=}