Matrices & Determinants
Properties of determinants
Grade 12

Question:

<p>If \(\det(A)\)=3, then det((A\)^4A⁻^4)^5) equals:</p>
<p>(A) 1</p>
<p>(B) 3</p>
<p>(C) 9</p>
<p>(D) 243</p>

Step-by-Step Solution

Key Concept: Inside simplifies to identity, so result remains 1.
1. $A$^4A⁻^4 = $I$ 2. $I$^5 = $I$ 3. det(I)=1
Correct Answer: 1

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