Kindly provide me with the correct answer. None of the previous answers is correct.

For the time being, I want mainly the answer to part c. The derivation with proper detail.

Please don't attempt if you are copy-pasting someone else's work which is already the wrong solution.

ENGR 1204 Programming Languages in Engineering MATLAB Lab 5 The objective of this exercise is to use MATLAB to find the minimum value of a function A pipe is to supply water to 4 cities forming a unit square (Note: 1 can represent any distance - e.g. 100 miles). The water source is at one of the cities. The goal is to connect the 4 cities with sections of pipe in a way which minimizes the total pipe length. Any number of pipe sections can be joined. The diagrams below show 4 possible configurations. Clearly solution (c), with a 4 way junction, uses less pipe than (a) or (b). The task will be to determine if solution (d) can further reduce the total pipe length. (b) @) (d) X X X length = 3 length = 3 x = sqrt(2)/2 = 0.707 length = 4x = 2.828 2 a+b=1 length = 4x + b Derive length in terms of b. length (b) = where Oc= b