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Home > PC3 > Chapter 3 > Lesson 3.2.1 > Problem 3-98

3-98.

Determine the exact value of each of the following trigonometric expressions without using a calculator.  

Compute without a calculator

  1. Draw a unit circle with reference angle.

    Unit Circle with right triangle in third quadrant, with horizontal leg, on the negative, x axis, labeled, negative 1 half Times Square root of 3, & hypotenuse is the radius of the circle.

  1. Follow the hint in part (a).

  1. What is the slope of the line associated with this angle?

  1. Follow the hint in part (a).