8. Find the area of the part of the surface z=arctan (-) that lies above the region D: D={(x,y)|1 ≤ x² + y² ≤ 8} n {(x,y
Posted: Tue Jul 12, 2022 11:39 am
8. Find the area of the part of the surface z=arctan (-) that lies above the region D: D={(x,y)|1 ≤ x² + y² ≤ 8} n {(x,y) |0 ≤ y ≤x} . (Hint. You may use the derivative of √²+1) x