Asked by Anon
True/False question
Suppose that A is a 2 x 3 matrix such that A[1, 1, 1]^t = [2, 3]^t = A[2, 3, 4]^t. Then [1, 2, 3]^t belongs to the nullspace of A.
I have no idea how to start this question/what it means.
Suppose that A is a 2 x 3 matrix such that A[1, 1, 1]^t = [2, 3]^t = A[2, 3, 4]^t. Then [1, 2, 3]^t belongs to the nullspace of A.
I have no idea how to start this question/what it means.
Answers
Answered by
Steve
First, be sure you understand a matrix null space. Google is your friend.
Te null space is all vectors x such that
xA = 0
I'm having a hard time understanding
A[1, 1, 1]^t = [2, 3]^t = A[2, 3, 4]^t
How can they all be equal?
Te null space is all vectors x such that
xA = 0
I'm having a hard time understanding
A[1, 1, 1]^t = [2, 3]^t = A[2, 3, 4]^t
How can they all be equal?
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