hi i need to know -
how do you find the inverse of matrix B from:
where I is the identity matrix, and B is a 4x4 square matrix.
B in this case is:
-7 0 0 8
-6 5 -4 5
-4 4 -3 3
-8 0 0 9
thanks to anyone who can help
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I think there is something wrong with the info because:
<=> I = (I-B)*(I+B)
<=> I = I + B -B -B^2
<=> I = I - B^2
<=> B^2 = 0
which means that B is nilpotent and therefore not invertible.
As you can see the given information is inconsistent.
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