alleryDeterminants are used to find the inverse of a square:
ANumber
BVector
CSegment
DMatrix
Answer & Solution
Correct answer: D. Matrix
1. The adjoint of a matrix is built from cofactors.
2. Dividing it by the determinant gives the inverse.
3. So determinants find the inverse of a square matrix.
_Source: syllabus Mathematics Part I, Chapter 4, Determinants._
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