Use the appropriate expression for the differential surface area ds to determine the area of thefollowing surfaces: \text { (a) } r=3 ; 0 \leq \phi \leq \frac{\pi}{3} ;-2 \leq z \leq 2 \text { (d) } R=2 ; 0 \leq \theta \leq \frac{\pi}{3} ; 0 \leq \phi \leq \pi \text {; } \text { (e) } 0 \leq R \leq 5 ; \theta=\frac{\pi}{3} ; 0 \leq \phi \leq 2 \pi