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Three points are collinear when the determinant of their coordinates is:
AZero
BOnee
CTwoo
DNine
Answer & Solution
Correct answer: A. Zero
1. The determinant gives twice the triangle's area.
2. Collinear points enclose no area.
3. So the determinant comes out zero.
4. The answer is zero.
_Source: NCERT Class 12 Mathematics, Ch 4 'Determinants'_
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