In Exercises 21 and 22, mark each statement True or False. Justify each answer on the basis of carefull reading of text A. The column of a matrix A is linearly independent if the equation Ax=o has a trivial solution.
B. If S is a linearly dependent set, then each vector is a linear combination of other vector in S.
C. The columns of any 4*5 matrix are linearly dependent.
D. If x and y are linearly dependent and if (x, y,z) is linearly dependent then z is in span (x, y)