### Home > A2C > Chapter 13 > Lesson 13.1.1 > Problem 13-15

13-15.

List 3 possible values for *h* that will make the equation cos(*x* − *h*) = sin(*x*) true. Homework Help ✎

Think of the graphs of cos *x* and sin *x*. What are three amounts that you can shift cos *x* so that it matches the graph of sin *x*?