12. Let A be a 3×3 matrix, and suppose that the matrix B is obtained from A by the following row operations: R1+R; R3¬R3+5R2, If det (A)=12, what is det (B)?
12. Let A be a 3×3 matrix, and suppose that the matrix B is obtained from A by the following row operations: R1+R; R3¬R3+5R2, If det (A)=12, what is det (B)?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:12. Let A be a 3×3 matrix, and suppose that the matrix B is obtained from A by the following row
operations: R1→R2; R3¬R3+5R2 , If det (A)=12, what is det (B)?
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