Given the equations of the river banks, determine the area of land.
North Bank: y = cos
South Bank: y = ln(9 − x) Homework Help ✎
The x-axis is the line pointing east, and the y-axis is the line pointing north.
Set up an integral to find the area of the Northern region first.
Note that this will be the area between a horizontal line (on top) and a curvy line (on the bottom).
The area of the Southern region will be easier to set up.