In Exercises 3538, the function is periodic but not a
Chapter 4, Problem 4.1.1.493(choose chapter or problem)
In Exercises 35–38, the function is periodic but not a sinusoid. Find the period graphically and sketch a graph showing one period.
y = sin 2x + sin 5x
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer