[" 15.If "k" is a scalar and "I" is a unit matrix of order "],[3," then "adj(kI)=]

If k is a scalar and I is unit matrix of order 3, then adj(kI)=

If k is a scalar and l is a unit matrix of order 3 then adj(kl) is equal to

If k is a scalar and I is a unit matrix of order 3 then adj(kI) is equal to (a) k^(3)I (b) k^(2)I (c) -k^(3)I (d) -k^(2)I

If I is unit matrix of order n, then 3I will be

If A is a square matrix of order 2, then adj (adj A)

If A is a square matrix of order n, then |adj A|=

If A is a non singular matrix of order 3 then |adj(A)|= ……………