## Integrating sine functions

I am to determine the area between these two curves. Although I am familiar to the process I fail to recognize and grasp what one should do to these specific types of functions. If possible could someone assist me and post a solution along with work so I can process it.

To the question.

We are to find the area between these two curves
y = 8.5sin(0.32x-0.12)+0.56
y = 4.7sin(0.42x+0.5)-4.3

From x=-10 to x=10