Matlab Expert needed

What is a workspace? How to display the list of variables stored in a MATLAB workspace?
(3 marks)
c) Write the equivalent MATLAB statement for each of the following mathematical expression.
(i) yxc (ab)2 2
(2 marks)
(ii)
(iii)
_______________________________________________________________
; Where x and y are vectors. _______________________________________________________________
; Where ‘a’ is an angle vector in degree. _______________________________________________________________
d) Write the return value for each of the following MATLAB statement.
(i) x = 4+5^2+6/2*3 (ii) y = 9+8>10+2*3==5 (iii) z = 3>5||3>3-5
(iv) v = 3>5&&3>3-5
x =_________ y =__________ z = __________ v = __________
(6 marks)
(4 marks)