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Home > PC3 > Chapter 2 > Lesson 2.2.3 > Problem 2-77

2-77.

Sketch a unit circle. In your circle, sketch an angle in standard position so that the angle has: 

  1. A positive cosine and a negative sine. 

    Any angle in Quadrant .

    Circle, divided into 4 equal quadrants, radius in fourth quadrant, with point on the circle labeled, open parenthesis, positive sign, comma, negative sign, close parenthesis.

  2. A negative cosine and a negative sine.  

    Any angle in Quadrant .

    Circle, divided into 4 equal quadrants, radius in third quadrant, with point on the circle labeled, open parenthesis, negative sign, comma, negative sign, close parenthesis.

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