For a non-singular matrix A, A^-1 is equal to _________
(a) (adj(A))/det(A)
(b) det(A)*(adj(A))
(c) det(A)*A
(d) none of the mentioned
The question was posed to me during an interview.
My doubt is from Inverse of Matrices topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics