How do you find the inverse of [(9,13), (27,36)]?
3 Answers
Explanation:
Let's say
The inverse is then :
So
The inverse is
Explanation:
The inverse of the matrix
Let
The determinant of
As
Verification
Explanation:
"given " A=((a,b),(c,d))
"then the inverse "A^-1" is"
A^-1=1/(detA)((d,-b),(-c,a))
detA=ad-bc
rArrdetA=(9xx36)-(13xx27)=-27
rArrA^-1=-1/27((36,-13),(-27,9))
color(white)(rAeeA^-1)=((-4/3,13/27),(1,-1/3))