Questions
Let M be a 3 x 3 non-singular matrix with
detailed solution
Correct option is B
We know that M (adj M) = det (M) I⇒ det(M)M−1(adj(adjM))=α2I∵M−1=1|M|adj(M)⇒ αM−1(adj(adjM))=α2I⇒ M−1(adj(adjM))=αI But, M−1(adj(adjM))=kHence, k=αSimilar Questions
Let A be an invertible matrix. Which of the following is not true?
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