alleryWhich of these is worked out first, before the cofactor?
AThe system
BThe minor
CThe adjoint
DThe inverse
Answer & Solution
Correct answer: B. The minor
1. The cofactor is the minor with a sign attached.
2. So the minor has to exist before the cofactor can.
3. The minor is worked out first.
_Source: syllabus Mathematics Part I, Chapter 4, Determinants._
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