The Unit Circle: Sine and Cosine Functions

Question 1

7.4 Example 6: Simplify sec t/tan t.

Answer 1

csc t (p.753)

Question 2

7.4 Example 7: If cos(t) = 12/13 and t is in quadrant IV, find the values of the other five trigonometric functions.

Answer 2

sin t = -5/13, tan t = -5/12, sec t = 13/12, csc t = -13/5, cot t = -12/5 (p.754)