A. If B is a basis for a subspace H, then each vector in H can be written in only one way as a linear combination of the vectors in B.
b. If B= {V1, Vp} is a basis fora subspace H of Rn, then the Correspondence X →[X]B makes H look and act the same as IRE.
c. The dimension of Nul As the number of variables in the equation Ax=0.
d. The dimension of the column space of A is rank A.
e. If H is a p-dimensional subspace of Rn, then a linearly independent set of p vectors in H is a basis for H.