Let be a square matrix and let be cofactor of in

MATHEMATICS · Single correct · CBSE · Mathematics · Determinants · Determinants

Problem

Let

A = [a_{ij}]_{n \times n}

be a square matrix and let

c_{ij}

be cofactor of

a_{ij}

A

. If

C = [c_{ij}]

, then (a)

|C| = |A|

(b)

|C| = |A|^{n-1}

(c)

|C| = |A|^{n-2}

(d) None of these