Posted by lindsay on Thursday, July 19, 2012 at 10:23am.
What ia A inverse if A = (3 2)
(3 2)

math  Reiny, Thursday, July 19, 2012 at 2:49pm
for
a b
c d
for a denominator let k = ad  bc
If k is zero, there is no inverse
k = 6  (6) = 12
the inverse is
d b
c a times 1/k
we would ge
(1/12) times the matrix
2 2
3 3