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Quiz #2 of linear algebra, Quizzes of Linear Algebra

Virginia Polytechnic Institute and State University (Virginia Tech)Linear Algebra
Prof. Sanjay Raman

Linear Algebra quiz 2 of the class of linear algebra

Typology: Quizzes

2023/2024

Uploaded on 02/17/2025

hunter-bambule
hunter-bambule 🇺🇸

3 documents

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MAT253 POW #2 20 points Name _________________________________
No Work = No Credit
1) ( 5 points) Use an inverse matrix to solve each system of linear equations.
2) (5 points) Use either elementary row or column operations, or cofactor expansion, to find
the determinant by hand. Show all steps.
pf2

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MAT 253 POW # 2 20 points Name _________________________________

No Work = No Credit

  1. ( 5 points) Use an inverse matrix to solve each system of linear equations.

2 ) (5 points) Use either elementary row or column operations, or cofactor expansion, to find

the determinant by hand. Show all steps.

  1. ( 10 points) a. Explain how to find an elementary matrix. b. Explain how to use elementary matrices to find an LU-factorization of a matrix. c. Explain how to use LU-factorization to solve a linear system.