Need done in matlab quickly and correctly. Its due in 1 hour and 20. Also post code below that can be copied thanks.

%%P3 [ 20 Points ] clear all, clc %{ Consider the following assignment statement: value = cos(pi/2) %} %{ a. Using a built-in fuction, modify the assignment statement above to ensure that the variable 'value' is exactly zero. b. Write a logical statement to prove 'value' is exactly zero. %} % a. %b