If A is a square matrix of order 3, $B = kA$ and $B = x |A|$ then,
Answer & explanation
Correct answer: option 3
$A$ → order (3 × 3)
$B = |kA|$
So, $|B|=|kA| = k^3|A|$ (as A has order 3)
$x=k^3$ (upon comparing)
If A is a square matrix of order 3, $B = kA$ and $B = x |A|$ then,
Correct answer: option 3
$A$ → order (3 × 3)
$B = |kA|$
So, $|B|=|kA| = k^3|A|$ (as A has order 3)
$x=k^3$ (upon comparing)