SOLUTION: I need help. Suppose that A^-1=Matrix[2 -1] find A 3 5

Algebra ->  College  -> Linear Algebra -> SOLUTION: I need help. Suppose that A^-1=Matrix[2 -1] find A 3 5       Log On


   

Question 146169: I need help.
Suppose that A^-1=Matrix[2 -1] find A
3 5
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A^-1=Matrix[2 -1] find A
.......... [3 5]
--------------------
[A^-1]^-1 = A
So find the inverse of the given matrix:
A = (1/13)[5 1]
..........[-3 2]
======================
Cheers,
Stan H.