alleryThe minor of an element in an order n determinant has order:
An minus 1
Bn plus 1 s
Cn times 2 s
Dn itself is
Answer & Solution
Correct answer: A. n minus 1
1. Deleting one row and one column shrinks the array.
2. It loses exactly one of each.
3. So the minor has order n minus 1.
4. The answer is n minus 1.
_Source: syllabus Mathematics, Ch 4 'Determinants'_
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