Matrices & Determinants
Properties of determinants
Grade 12

Question:

<p>If \(\det(A)\)=2, then det(A\)⁻^3A^2) equals:</p>
<p>(A) 1/2</p>
<p>(B) 1/4</p>
<p>(C) 2</p>
<p>(D) 1</p>

Step-by-Step Solution

Key Concept: Simplify: $A$⁻^3A^2 = $A$^{-1}.
1. $A$⁻^3A^2 = $A$^{-1} 2. det(A$^{-1})=1/2
Correct Answer: 1

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