1.
Find the area enclosed between and , on the interval from to .
Area =????
2. Find the area of the region enclosed between and from to . Hint: Notice that this region consists of two parts.
Notice how on . So the area is evaluated as:
Simply evaluate the integral from there.
For the next problem, find where the two graphs intersect and knowing how sine and cosine curves are on the given interval (which is ), you'll know that to the left of the intersection and to the right of it
So the two intergrals needed are: