29. A matrix type where: A matrix with all elements BELOW the main diagonal are zero Identity matrix Zero/Null Matrix Upper Triangular Matrix Lower Triangular Matrix

Write the system of equations that corresponds to the augmented matrix: [111423181113] .

Determine the dimension of the matrix 14710238.

Consider the matrix A=[2314]. Show that any of the three types of elementary row operations can be used to create a leading 1 at the top of the first column. Which do you prefer and why?

Determine if the statement is true or false. If the statement is false, then correct it and make it true. For the product of two matrices to be defined, the number of rows of the first matrix must equal the number of columns of the second matrix.

Find the sequence of the elementary matrices whose product is the non singular matrix below. [2410]

Can a matrix that has 0 entries for an entire row have one solution? Explain why or why not.

What is the reduced row echelon form of a matrix?

Let A be an nn matrix in which the entries of each row sum to zero. Find |A|.

Determine if the statement is true or false. If the statement is false, then correct it and make it true. A 75 matrix has 5 rows.