6.2 Trigonometric Functions: Unit Circle Approach/51

$sin{\frac {3\pi }{4}}={\frac {\sqrt {2}}{2}};cos{\frac {3\pi }{4}}=-{\frac {\sqrt {2}}{2}};tan{\frac {3\pi }{4}}=-1;csc{\frac {3\pi }{4}}={\sqrt {2}};sec{\frac {3\pi }{4}}={-{\sqrt {2}}};cot{\frac {3\pi }{4}}=-1$