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[" 16.Prove that : "],[qquad |[b+c,a,a],...

[" 16.Prove that : "],[qquad |[b+c,a,a],[b,c+a,b],[c,c,a+b]|=4abc]

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Prove: |[b+c,a,a],[b,c+a,b],[c,c,a+b]|=4a b c

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