If I is the unit matrix of order n, where K≠0 is a constant,... | Mathematics | SolveeIt | Solveeit

Today, August 23

Question

If I is the unit matrix of order n, where K≠0 is a constant, then adj(KI) =

A

Kn (adj I)

B

K (adj I)

C

K2 (adj I)

D

Kn-1 (adj I)

Answer

Kn-1 (adj I)

Explanation

Solution

The correct option is (D): Kn-1 (adj I)