Matrices & Determinants
Properties of determinants
Grade None
Question:
<p>If all elements of a row are multiplied by k, determinant becomes:</p>
\(k\Delta\)
\(\Delta\)/k
k^2\(\Delta\)
unchanged
Step-by-Step Solution
Key Concept: Scaling one row scales determinant by same factor.
1. Multiply one row by k
2. Determinant becomes $k\Delta$
Correct Answer: 1