Set Up, but Do Not Evaluate, the Integral to Find $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 16$

question 57

Essay

Set up, but do not evaluate, the integral to find the surface area of the portion of the sphere $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 16$ between the planes z = 1 and z = 2.