Find the dimensions of the null space and the column space of the given matrix. A = al 3-4 3 -2 -4 -3 -4 dim Nul A = 3, dim Col A = 2 dim Nul A = 3, dim Col A = 3 dim Nul A = 2, dim Col A = 3 dim Nul A = 4, dim Col A = 1
Let A be a 5x6 Matrix with two pivot columns. The null space of
A is a subspace of R^a and the column space of A is R^b, where a
and b are positive integers.
a.) What are the values of a and b?
b.) What is the rank of A
c.) What is the dimension of null space of A?
https://i.imgur.com/yi7EpYH.png
2. Let A be a 5x6 matrix with 2 pivot columns. The null space of A is a...
Suppose an 8 x 10 matrix A has eight pivot columns. Is Col A=R8? Is Nul A=R2? Explain your answers. Is Col A =R8? A. Yes. Since A has eight pivot columns, dim Col A is 8. Thus, Col A is an eight-dimensional subspace of R8, so Col A is equal to R8 OB. No, the column space of Ais not R. Since A has eight pivot columns, dim Col A is 0. Thus, Col A is equal to 0....
Question 4 2 pts Determine whether the vector u is in the column space of the matrix A and whether it is the null space of A. 1 0 3 1 -2 1 - 4 U = 3 3 0 4 - 1 3 6 Not in Col A in Nul A In Col A, not in Nul A Not in ColA, not in Nul A In Col A and in Nul A Question 5 1 pts 1 co 2...
A8.2 Let A be an m × n matrix and B be an n × p matrix. (a) Show that col(B) C null(A) if and only if AB = 0. (b) Show that if AB = 0, then rank(A) + rank(B) 〈 n.
A8.2 Let A be an m × n matrix and B be an n × p matrix. (a) Show that col(B) C null(A) if and only if AB = 0. (b) Show that if AB = 0,...
Please do only e and f and show work
null(AT) null(A) T col(A) row(A) Figure 5.6 The four fundamental subspaces (f) Find bases for the four fundamental subspaces of 1 1 1 6 -1 0 1 -1 2 A= -2 3 1 -2 1 4 1 6 1 3 8. Given a subspace W of R", define the orthogonal complement of W to be W vE R u v 0 for every u E W (a) Let W span(e, e2)...
Let A be an m x n matrix. Prove that the null-space of AT A, Null (AT A), is a subspace of Rn.
1. For the matrix A given below, find col(A) and Nul(A). Also determine if the given vector is in the column space, null space, both or neither. A = -2 -5 1 3 3 11 1 7 8 -5 -19 -13 0 1 7 5 -171 5 1 -3 1 5 1
[ 2 4 -2 11 4. (20pts) Consider a matrix A = 3 7 -8 6 and corresponding Col A & Nul A. -2 -5 7 3 Col A is a subspace of Rk and Nul A is a subspace of R'. |(1) Find k and one nonzero-vector in Col A. | (2) Find 1 and one nonzero-vector in Nul A.
(I) A square matrix E E M,xn(R) is idempotent if E-E. It is symmetric if E-E RR -[projyl& of projy relative to the standard basis (a) Let V C R be a subspace of R", and consider thé orthogonal projection projy onto V. Show that the representing matrix E & of IRn is both idempotent and symmetric. (b) Let E E Mnxn(R) be a matrix that is both idempotent and symmetric. Show that there is a subspace VCR" such that...