(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the determinant of the matrix using identities without evaluating the determinants directly:

a b b b

b a b b

b b a b

b b b a

3. The attempt at a solution

I tried getting it into a triangular matrix but halfway through it got too complicated and it has to be simpler than what I think it is. The matrix is symmetric but I don't know how that relates to the determinant.

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# Homework Help: Linear algebra Help!

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