If `A` is a square matrix of order `3` such that `|A|=5`, then `|Adj(4A)|=`

If `A` is a square matrix of order `3` such that `|A|=5`, then `|Adj(4A)|=`
A. `5^(3)xx4^(2)`
B. `5^(2)xx4^(3)`
C. `5^(2)xx16^(3)`
D. `5^(3)xx16^(2)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - C
`(c )` `Adj(4A)=4^(2)Adj(A)=16Adj(A)`
`implies|Adj4A|=16^(3)=|AdjA|=16^(3)*5^(2)`

5 views Answered 2023-02-05 15:29

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