Question

Let A be a square matrix of order 3x3, then |kA|=?​

Answer 1

Answer:

Step-by-step explanation:

Correct option is  C  :k^3  ∣A∣

If A is a square matrix of order n , then we can take k common from each of the n rows of kA

Hence, ∣kA∣=k^n  ∣A∣

So, for a square matrix of of order 3,  

∣kA∣=k^3  |A∣