Evaluate $\iiint _ { E } z \left( x ^ { 2 } + y ^ { 2 } \right) d V$

Short Answer

Evaluate $\iiint _ { E } z \left( x ^ { 2 } + y ^ { 2 } \right) d V$ , where E is the solid bounded by the cylinder $x ^ { 2 } + y ^ { 2 } = 4$ , above by z = 3 and below by z = 0.