Question

Find the inverse of the matrix using elementary operations
A [0 1 2 ]
[1 2 3 ]
[3 1 1 ]

Answer 1

Step-by-step explanation:

(2 3) (1 3) (12)

(1 1) = -1 (3 1) = -8 (31) = -5

(1 2) (0 2) (01)

(1 1)= -1 (3 2) = -6 (31) = -3

(1 2) (02) (01)

(2 3)= -1 (13)= -3 (12)= -1

A=[012]

[123]

[311]

A-¹ = [-1 -8 -5]

[-1 -6 -3]

[-1 -3 -1]

adj(A) [-1 8-5]

[1 -6 5]

[-1 3-5]

oh no.. it's should be elementary operation.. sorry bro