Solution
- We are asked to find the number of times the two cosine graphs intersect:
- We have also been restricted to the domain of [0, 360). This implies that we are considering all the angles from 0 (Inclusive) to 360 (not included).
- The point where both f(x) and g(x) intersect, implies that they are equal at that point. Thus, we can simply equate both functions together and solve for x to get all the values of x within the domain [0, 360).
- This is done below:
Final Answer
The answer is 90° (OPTION 1)