Matrices & Determinants
Properties of determinants
Grade 12

Question:

<p>If \(\det(A)\)=k, then det(A\)^nA^mA⁻^n) 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: Simplify: $A$^nA^mA⁻^n = $A$^m.
1. $A$^nA⁻^n = $I$ 2. Expression = $A$^m 3. det = k^m
Correct Answer: 1

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