Question 6 1 000 00 1 0 is 0 0 0 1 The inverse of the matrix A = 0100

Use elementary matrices to find the inverse of A=100010abc, c0.

Let X1,X2,X3 and b be the column matrices below. X1=[101], X2=[110], X3=[011] and b=[123] Find constants a, b, c and c such that aX1+bX2+cX3=b