can you please help me out with these problems

1. Assume that a,b,c, and d are defined as follows, calculate the results of the following operations if they are legal, if an operation is not legal, explain why it is illegal. Do this problem by hand only and show work in the space provided! a=[12271]b=[0113]c=[172d=5 a. (5) result =a[c,c]; b. (5) result =a[c,c]; 2. Write MATLAB program to ask user for their name and their Eagle ID using input() function, and display them using fprintf( ) function. Include program code and screenshot of result 3. Repeat problem 2, but display using disp( ) function. Include program code and screenshot of result