Matrices & Determinants
Properties of determinants
Grade 12
Question:
<p>If \(\det(A)\)=k, then det(A\)^nA^mA⁻^n) where m>0 equals:</p>
<p>(A) k^m</p>
<p>(B) k^n</p>
<p>(C) k</p>
<p>(D) 1</p>
Step-by-Step Solution
Key Concept: Cancel $A$^n and $A$⁻^n \Rightarrow remaining $A$^m.
1. Expression = $A$^m
2. det = k^m
Correct Answer: 1