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concon
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Homework Statement
Use cofactor expansion to compute determinants of nxn matrices
A= (aij)=
[0 0 ... 0 1
0 0 ... 2 0
....
0 (n-1) 0 ... 0
n 0 0 ... 0]
B=(bij)=
[ 0 1 0 ... 0
0 0 2 ... 0
....
0 0 0 ... (n-1)
n 0 0 ... 0]
Homework Equations
det(A) = (aij)(-1^(i+j))det(aij)
The Attempt at a Solution
I though A was diagonal matrix so I tried (n)(n-1)2*1=364
Then I realized to include ... so I thought det(A) = 0
Both were wrong.
Not sure how to solve either det(A) or det(B) when n=14
Does than mean its just n=14 or is it 14x14 matrix?