Finish the following definitions A subspace of Rn Is any set
     Finish the following definitions  A subspace of R^n Is any set H in R^n that satisfies the following properties...  A basis for a subspace H of R^n Is a set of vectors in H that...  The column space of a matrix A  Is The null space of a matrix A is 
  
  Solution
d) Null Space of a Matrix is a valid Subspace.
c) the column space C(A) of a matrix A (sometimes called the range of a matrix)
a) a subspace of Rn is any set H in Rn that satisfies the following properties
1 the zero vector 0 should be in it
2 H must be closed under addition . this means, if u and v are vector in H , then their sum u+v must be in it
3 H must be closed under scalar multiplication . this means if u is a vector in H and C is any scalar . then product CU must be in H

