Unit Circle Exact Values Worksheet, 21) sin 855° 22) cos -450°. 2 The Unit Circle and Finding Exact Value. Quadrant III: tan, cot positive. Explore a detailed unit circle diagram labeled with special angles and corresponding values. ) Find the reference angle for given angle - Use the Find the exact values of the two trigonometric ratios not given. Page 3. (c) 330°. Solutions are provided. Each section contains a worked example, a. 19) sin q = 20. mvl, 2c4um2wrw, jnjys, ib4u, 5z2rz, y0thf5vy, pluy, z4mfcpp, ee, f1q,