Finding the Determinant of an Elementary Matrix In Exercises 39–42, find the determinant of the elementary matrix. (Assume
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
Bundle: Elementary Linear Algebra, Loose-leaf Version, 8th + WebAssign Printed Access Card for Larson's Elementary Linear Algebra, 8th Edition, Single-Term
- The Determinant of a Matrix In Exercises 1-12, find the determinant of the matrix. [5263]arrow_forwardThe Determinant of a Matrix In Exercises 1-12, find the determinant of the matrix. [2044]arrow_forwardThe Determinant of the Inverse of a Matrix In Exercises 29-32, find |A-1|. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |A|and then applying the formula from Theorem 3.8, |A-1|=1|A|. A=[112248110]arrow_forward
- Finding the Determinant of an Elementary Matrix In Exercises 3942, find the determinant of the elementary matrix. Assumek0. [100k10001]arrow_forwardThe Determinant of a Matrix in Exercises 25-30, find |A1|.Being by finding A1, and then evaluate its determinant. Verify your result by finding |A| and then applying the formula from Theorem 3.8, |A1|=1|A|. A=[223112303]arrow_forwardFind a Determinant In Exercises 19-32, use expansion by cofactors to find the determinant of the matrix [246031005]arrow_forward
- Unless otherwise specified, assume that all matrices in these exercises are nxn. Determine which of the matrices in Exercises 1–10 are invertible. Use as few calculations as possible. Justify your answersarrow_forwardFind a Determinant In Exercises 19-32, use expansion by cofactors to find the determinant of the matrix [xy1320111]arrow_forwardThe Determinant of a scalar multiple of a Matrix In Exercises 7-14, use the fact that |cA|=cn|A| to evaluate the determinant of the nn matrix. A=[2464686810]arrow_forward
- Find the determinant of the matrix in Exercise 16 using the method of expansion by cofactors. Use a the third row and b the first column. 16. [342631478]arrow_forwardThe determinant of a matrix product In Exercises 1-6, find (a)|A|,(b)|B|,(c)AB and (d)|AB|.Then verify that |A||B|=|AB|. A=[2142],B=[1101]arrow_forwardFinding Determinants In Exercises 27 and 28, find a |A|and b |A-1|. A=[213204150]arrow_forward
- Elementary Linear Algebra (MindTap Course List)AlgebraISBN:9781305658004Author:Ron LarsonPublisher:Cengage LearningAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage