please help A B D using Matlab

12) If you want to calculate x = A-1b in MATLAB, you know that you should enter >> X = Ab; not >> x = inv(A)*b; % DON'T EVEN THINK ABOUT IT 10.2: The Condition Number of a Matriz 1479 The answers must be given as ~cn where you must write out c and p explicitly. a) How would you code x = ABCDb most efficiently in MATLAB, and how many flops are needed? Hint (this part only): The answer has p= 2, not p = 3. b) How would you code x = BA-1b most efficiently in MATLAB, and how many flops are needed? c) How would you code x = B(C+ A)-16 most efficiently in MATLAB, and how many flops are needed? d) How would you code x = B-1(C+ A)b most efficiently in MATLAB, and how many flops are needed? e) How would you code x = B-1(C+ A)-16 most efficiently in MATLAB, and how many flops are needed? f) How would you code x = B-(2A-1+1)(C-1 + A)-16 most efficiently in MATLAB, and how many flops are needed? 12) If you want to calculate x = A-1b in MATLAB, you know that you should enter >> X = Ab; not >> x = inv(A)*b; % DON'T EVEN THINK ABOUT IT 10.2: The Condition Number of a Matriz 1479 The answers must be given as ~cn where you must write out c and p explicitly. a) How would you code x = ABCDb most efficiently in MATLAB, and how many flops are needed? Hint (this part only): The answer has p= 2, not p = 3. b) How would you code x = BA-1b most efficiently in MATLAB, and how many flops are needed? c) How would you code x = B(C+ A)-16 most efficiently in MATLAB, and how many flops are needed? d) How would you code x = B-1(C+ A)b most efficiently in MATLAB, and how many flops are needed? e) How would you code x = B-1(C+ A)-16 most efficiently in MATLAB, and how many flops are needed? f) How would you code x = B-(2A-1+1)(C-1 + A)-16 most efficiently in MATLAB, and how many flops are needed