Question

7.The inverse of a matrix is found by
(a)multiplying the matrix by the
identity matrix
(b)dividing the adjoint of the matrix by the determinant
(c) dividing the cofactor matrix by its determinant
(d)multiplying the matrix by itself​

Answer 1

A–¹ = adj ( A) / |A|

Hence,

( b ) dividing the adjoint of the matrix by the determinant

is the correct answer.

Answer 2

Answer:

option c is the right answer.

Step-by-step explanation:

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