On a separate sheet of paper, draw a unit circle. Use the drawing to complete the chart below that indicates the sign of the
trigonometric functions in each quadrant.
Function
Quadrant
I II III IV
sina or csc
+
COS or seco
tan or cota
In the box below, state the quadrant in which the following conditions are met:
a. The sine and tangent functions are both negative in this quadrant.
b. The cosine and cotangent functions are both negative in this quadrant.