Question

Given A= [3 4 4 -3] and B = [24 7 1/1] ; find the matrix x such that AX=B​ soluttion

Answer 1

Answer:

May it help you.

Step-by-step explanation:

A=[ 3 4 4 -3] , B= [ 2 4 7 1]

let x = [a b c d ].

now A^-1 = adjoint A ÷ determinant A.

adjoint A = [-3 -4 -4 3], determinant A = 2×1+7×4=30

A^-1 = [ -3 -4 -4 3 ]/30

X =B× A^-1

= ([ 2 4 7 1 ] × [ -3 -4 -4 3] )/30

=( -22 4 -25 -25)/30