Matrices & Determinants
Properties of determinants
Grade 12
Question:
<p>If \(\det(A)\)=5, then det(A\)^{-1} + \(A\)^T) equals:</p>
<p>(A) 6</p>
<p>(B) cannot be determined</p>
<p>(C) 5</p>
<p>(D) 1</p>
Step-by-Step Solution
Key Concept: No rule for determinant of sum.
1. Expression involves sum
2. No direct formula
3. Cannot determine
Correct Answer: 2