How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Mr. Gregory White Your Own Question
Mr. Gregory White
Mr. Gregory White, Master's Degree
Category: Math Homework
Satisfied Customers: 5240
Experience:  M.A., M.S. Education / Educational Administration
Type Your Math Homework Question Here...
Mr. Gregory White is online now
A new question is answered every 9 seconds

1. Let v1, v2, v3, v4 be row vectors in the row 3-space V =

Customer Question

1. Let v1, v2, v3, v4 be row vectors in the row 3-space V = R3. Form a matrix A:= (v1^t,.., v4^t)
Suppose that A i show equivalent to following matrix
R = (1302/ 0013/ 0000) (its a 3x4 matrix. the / means next row)
(a) find asubset S of {v1, ... , v4} such that S is a basis of Span{v1, ..., v4}
(b) express every vector vi (not in S) as a linear combination of vectors in S
(c) Find a simpler basis of the row space Row(A) for the matrix A
(d) Determine the dimension of the column space Col(A) for the matrix A
(e) Determine the nullity(A) for the matrix A
Submitted: 1 year ago.
Category: Math Homework
Expert:  Mr. Gregory White replied 1 year ago.

Hello, my name is Greg.

Can you provide the specifics of what you are needing for this prompt as what you have provided above does not really show what is required. The more information you can provide, the easier it will be to find an expert who is best able to support your needs.

You can upload using a file sharing site such as or and then share the link here with us.