The first step is to find a coterminal angle between 0 and 2 π. Θ = - π 3 is not on the unit circle because it is negative. sin 11 π 6 = y = - 1 2Įxample 2: Evaluate Trigonometric Functions Not Between 0 and 2π Use the angle on the unit circle to find the corresponding x and y-coordinates.

Example 1: Evaluate Trigonometric FunctionsĮvaluate the six trigonometric functions for the given angles.