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If k is a scalar and l is a unit matrix ...

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

A

`k^(3)I`

B

`k^(2)I`

C

`-k^(3)I`

D

`-k^(2)I`

Text Solution

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The correct Answer is:
b
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