If A is square matrix of order 3 and B =-2A such that |B|= k|A| then the value of k is
Answer & explanation
Correct answer: option 4
The correct answer is option (4) → -8
$|B|=(-2)^3|A|$
so $k=-8$
If A is square matrix of order 3 and B =-2A such that |B|= k|A| then the value of k is
Correct answer: option 4
The correct answer is option (4) → -8
$|B|=(-2)^3|A|$
so $k=-8$