Consider the 10 × 10 matrix Bt =see photo 3a: Calculate its determinant det(Bt) as a function of t ∈ R 3b: For which values t ∈ R is the matrix B not invertible? [Why?]
Consider the 10 × 10 matrix Bt =see photo 3a: Calculate its determinant det(Bt) as a function of t ∈ R 3b: For which values t ∈ R is the matrix B not invertible? [Why?]
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Matrices And Determinants
Section: Chapter Questions
Problem 11CC
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Question
Consider the 10 × 10 matrix Bt =see photo
3a: Calculate its determinant det(Bt) as a function of t ∈ R
3b: For which values t ∈ R is the matrix B not invertible? [Why?]
Expert Solution
Step 1
For part 3a:
To find the determinant of given matrix as a function of t ∈ R.
Given matrix:
Step 2
Note that interchanging two rows or two columns of matrix reverse the sign of it's determinant from positive to negative or from negative to positive.
Here to find the determinant of given matrix first convert it into a upper triangular matrix, then it's determinant will be product of it's diagonal matrix of the new matrix formed.
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