The signed minor of an element is written using which letter:
AA
BM
CD
DT
Answer & Solution
Correct answer: A. A
1. The minor of an element is written with one letter.
2. The cofactor is written with a different one.
3. The cofactor is denoted by A with subscripts.
_Source: NCERT Class 12 Mathematics Part I, Chapter 4, Determinants._
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