If you want to calculate x = A-b in MATLAB, you know that you should enter >> x = A\b; not >> x = inv (A) *b; % DON'T EVEN THINK ABOUT IT The answers must be given as ~cn? where you must write out c and p explicitly. a) How would you code needed? Hint (this part only): The answer has p = 2, not p = 3. b) How would you code x = BA-b most efficiently in MATLAB, and how many flops are needed? c) How would you code x = B(C+ A)-b most efficiently in MATLAB, and how many flops are needed? = ABCDb most efficiently in MATLAB, and how many flops are d) How would you code x = B-(C+ A)b most efficiently in MATLAB, and how many flops are needed? e) How would you code x = B-(C+ A)-b most efficiently in MATLAB, and how many flops are needed? B(2A + I)(C+A)-b most efficiently in MATLAB, and how f) How would you code many flops are needed? =