KERNEL AND THE RANGE OF A LINEAR TRANSFORMATION Note: The third row of the matrix in the example is [-1 -2 -8 ] not [-2 -2 -8 ] . Please check the first number.
Thank you Seung. The third row of the original matrix A should be [ -1 -2 -8 ] not [-2 -2 -8 ] for the first entry by mistake I copied -2 instead of -1. That way the rref is correct. And the first vector of the colspace is instead of . Thanks again.
