Problem 4 Let A be an n x k matrix, for some positive integers n and k . Suppose we are given that rank(A) 0, with rank(A) + rank(A") + nullity(A) = and nullity(A) + nullity(A") + rank(A) = 7. Find the size of this matrix A , namely find n and k . Hint. Use some appropriate results for this, and be methodical in analyzing the situation.

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter12: Algebra Of Matrices
Section12.3: M X N Matrices
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Problem 4
Let A be an n x k matrix, for some positive integers n and k .
Suppose we are given that rank(A) + 0 , with
rank(A) + rank(A") + nullity(A) = 3
and
nullity(A) + nullity(A") + rank(A) = 7.
%3D
Find the size of this matrix A , namely find n and k .
Hint. Use some appropriate results for this, and be methodical in analyzing the
situation.
Transcribed Image Text:Problem 4 Let A be an n x k matrix, for some positive integers n and k . Suppose we are given that rank(A) + 0 , with rank(A) + rank(A") + nullity(A) = 3 and nullity(A) + nullity(A") + rank(A) = 7. %3D Find the size of this matrix A , namely find n and k . Hint. Use some appropriate results for this, and be methodical in analyzing the situation.
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