allerySince area is positive, we take which value of the determinant?
AHalved on
BAbsolute
CNegative
DDoubled a
Answer & Solution
Correct answer: B. Absolute
1. The determinant may come out negative.
2. An area cannot be negative.
3. So we always take the absolute value.
4. The answer is absolute.
_Source: syllabus Mathematics, Ch 4 'Determinants'_
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