2. Find projection of the plane 2x - 3y + 4z = 5 under the matrix multiplication with the matrix A. 2 3 1 -1 -2 4 2-3 1 Write clean, and clear. Show steps of calculations. A=

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.

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?