SRMJEE 2019 Paper with key

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Question : 80 of 140

Marks: +1, -0

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

Kn(adj‌I)
K(adj‌I)
K2(adj‌I)
Kn−1(adj‌I)

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