Let A be an m xn matrix over R. We define NA := {x € R" : Ax = 0}. Na is called the kernel of A and v(A) := dim(Na) is called the nullity of A. If NA only contains the zero vector, then v(A) = 0. (i) Let %3D 1 A = 2 -1 Find NA and v(A). (ii) Let -1 3 A = 4 -2 -6 3 -9 Find NA and v(A).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
Let A be an m x n matrix over R. We define
NA := {x € R" : Ax = 0}.
Na is called the kernel of A and v(A) := dim(Na) is called the nullity of A. If
NA only contains the zero vector, then v(A) = 0.
(i) Let
%3D
1
A =
2
-1
Find NA and v(A).
(ii) Let
-1
3
A =
-2
-6
3
-9
Find NA and v(A).
Transcribed Image Text:Let A be an m x n matrix over R. We define NA := {x € R" : Ax = 0}. Na is called the kernel of A and v(A) := dim(Na) is called the nullity of A. If NA only contains the zero vector, then v(A) = 0. (i) Let %3D 1 A = 2 -1 Find NA and v(A). (ii) Let -1 3 A = -2 -6 3 -9 Find NA and v(A).
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,