Home › UP Board Class 12 › Mathematics › Determinants › The cofactor Aij equals the minor multiplied by:
The cofactor Aij equals the minor multiplied by:
AThe order of n
BMinus one power
CTwo to the ij
DThe element aij
Answer & Solution
Correct answer: B. Minus one power
1. A cofactor is a signed minor.
2. The sign alternates with position.
3. It is minus one to the power i plus j, times the minor.
4. So the answer is minus one power.
_Source: NCERT Class 12 Mathematics, Ch 4 'Determinants'_
Related questions
Determinants take each square matrix to exactly how many values?The adjoint of a matrix is assembled out of its:Which of these is worked out first, before the cofactor?The signed minor of an element is written using which letter:The determinant of a matrix may be a number that is:A matrix that is not square has a determinant that is:Determinants can solve systems in two or three:Systems of linear equations can be solved using the inverse of a: