Matrices & Determinants
Properties of determinants
Grade 12
Question:
<p>If two rows of a determinant are interchanged, then determinant becomes:</p>
<p>(A) same</p>
<p>(B) negative</p>
<p>(C) zero</p>
<p>(D) double</p>
Step-by-Step Solution
Key Concept: Row interchange changes sign of determinant.
1. Interchange rows
2. Determinant changes sign \to -\(\Delta\)
Correct Answer: 2