Create a big matrix with submatrices: The following matrix G is created by inserting the matrices A, B, and C' from Exercise 3, together with 2x 2 zero matrices and 2x 2 identity matrices in the appropriate position. Create the matrix using submatrices A, B, C, zeros and eye (that is, you are not allowed to enter the numbers explicitly) G = [1 2 1 0 0 0 0
3 4 0 1 0 0 0
0 1 2 7 -1 2 1]
A = [ 1 2
3 4]
B = [ 1 2
2 7]
C = [ 1 3 1
-1 2 1]