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(b) Find a formula for adj (adj A).

(b) Find a formula for adj (adj A).

Advanced Engineering Mathematics
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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please do part b

### Problem Statement Let \( A \) be an \( n \times n \) matrix with real entries. (a) Suppose that \( k \) is a real number. Prove that \(\det(kA) = k^n \det A\). (b) Find a formula for \(\text{adj}(\text{adj} A)\).
Transcribed Image Text:### Problem Statement Let \( A \) be an \( n \times n \) matrix with real entries. (a) Suppose that \( k \) is a real number. Prove that \(\det(kA) = k^n \det A\). (b) Find a formula for \(\text{adj}(\text{adj} A)\).
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