4. Is M₂ (R) a field? Justify.

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
100%
Let M₂ (R) be the set of 2 x 2 matrices with real number entries, i.e.,
M₂(R) = {[a b]a,b,c,d ER}.
Define matrix addition and matrix multiplication in M₂(R) as follows
a1
b₁
az b₂
a₁ + a₂ b₁ + b₂
=
[
C1
d₁
0₂ d₂
;] + [
][
b₁ az b₂
d₂
=
a₁a₂+ b₁c₂ a₁b₂ + b1d₂
c₁a₂+d₂c₂ c₁b₂+did₂
d₁ C₂
01
C1
].
Transcribed Image Text:Let M₂ (R) be the set of 2 x 2 matrices with real number entries, i.e., M₂(R) = {[a b]a,b,c,d ER}. Define matrix addition and matrix multiplication in M₂(R) as follows a1 b₁ az b₂ a₁ + a₂ b₁ + b₂ = [ C1 d₁ 0₂ d₂ ;] + [ ][ b₁ az b₂ d₂ = a₁a₂+ b₁c₂ a₁b₂ + b1d₂ c₁a₂+d₂c₂ c₁b₂+did₂ d₁ C₂ 01 C1 ].
4. Is M₂ (R) a field? Justify.
I Y
5. Show that T =
- {[ 8 ] |z, y, z € R} is a subring of M2 (R).
2
Transcribed Image Text:4. Is M₂ (R) a field? Justify. I Y 5. Show that T = - {[ 8 ] |z, y, z € R} is a subring of M2 (R). 2
Expert Solution
steps

Step by step

Solved in 2 steps with 2 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,