Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y, y=4sin(x), y=e^(7x), x=0, x=pi/2

Answer 1

For all x: 0<=x<=pi/2
4sin(x)<e^(7x)

We begin to integrate with respect to y:
Int.[from 4sin(x) to e^(7x)]...dy