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Home > PC > Chapter 5 > Lesson 5.1.1 > Problem 5-10


Find all values of where for the following equations.

  1. What special angle is this? 

    In what quadrants is tangent negative?

    Circle with diameters, vertical, horizontal, & slanted from second to fourth quadrants, vertical segments at each end of slanted diameter to their respective x axis, creates 2 right triangles.