Matrices & Determinants
Matrix multiplication
Grade 12

Question:

<p>If \(\det(A)\)=k, then det(I\)\cdotA) equals:</p>
<p>(A) k</p>
<p>(B) 1</p>
<p>(C) k^2</p>
<p>(D) 0</p>

Step-by-Step Solution

Key Concept: $I$\cdotA = $A$.
1. $I$\cdotA = $A$ 2. $\det(A)$=k
Correct Answer: 1

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