Question 30
TrigonometryWhich of the following is the graph of cos θ?
- A.Graph A
- B.Graph B
- C.Graph C
- D.Graph D
- E.Graph E
Show the answer and explanation
Answer: C (Graph C)
Explanation
cos θ equals 1 at θ = 0, 0 at π/2, −1 at π and 0 again at 3π/2. Graph C is the only one with this shape.