Matrices & Determinants
Properties of determinants
Grade 12

Question:

<p>If \(\det(A)\)=5, then det(A\)^6(A\)⁻^6 + \(I)(A\)⁻^6 - \(I)(A\)⁻^6 + \(I)) equals:</p>
<p>(A) 1</p>
<p>(B) 5</p>
<p>(C) cannot be determined</p>
<p>(D) 25</p>

Step-by-Step Solution

Key Concept: Expansion leads to determinant of non-linear expression.
1. Expression involves multiple additions 2. Cannot simplify determinant 3. Answer: cannot be determined
Correct Answer: 3

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