Asked by lindsay
What ia A inverse if A = (3 -2)
(3 2)
(3 2)
Answers
Answered by
Reiny
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
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
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