alleryThe adjoint of a matrix is assembled out of its:
AColumn sums
BDiagonals
CCofactors
DRow sums
Answer & Solution
Correct answer: C. Cofactors
1. Each entry of the adjoint comes from one element of the matrix.
2. That entry is the signed minor of the element.
3. So the adjoint is assembled out of cofactors.
_Source: syllabus Mathematics Part I, Chapter 4, Determinants._
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