SOLUTION: find inverse of the matrix and also verify your result. 1 -2 3 4

Question 175039: find inverse of the matrix and also verify your result.
1 -2
3 4
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!

A=

:
adjA= in a 2x2 matrix...the elements of the main diagonal of the matrix A are switched whereas we take the negatives of the remaining elements to obtain the adjugate of A
:
detA=1(4)-2(-3)=10
:
/10=
:
=
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