alleryWhen the area is given and you must find a coordinate, use:
ANeither one
BBoth signs
COnly plus
DOnly minus
Answer & Solution
Correct answer: B. Both signs
1. The determinant can be positive or negative.
2. Both give the same magnitude of area.
3. So use both the positive and negative values.
4. The answer is both signs.
_Source: syllabus Mathematics, Ch 4 'Determinants'_
Keep practising Matrices and Determinants
Browse all Matrices and Determinants questions for AP Intermediate 2nd Year, or explore more Mathematics topics.
Related questions