(a) Write down a 4 4 special lower triangular matrix whose entries below the diagonal are...

Question:

(a) Write down a 4 × 4 special lower triangular matrix whose entries below the diagonal are different, nonzero numbers.
(b) Explain which elementary row operation each entry corresponds to.
(c) Indicate the order in which the elementary row operations should be performed by labeling the entries 1,2, 3,. . . .