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|[1,a,b+c],[1,b,c+a],[1,c,a+b]|...

|[1,a,b+c],[1,b,c+a],[1,c,a+b]|

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Show without expanding at any stage that: [1,a,b+c],[1,b,c+a],[1,c,a+b]|=0

Evaluate [[1,a,b+c],[1,b,c+a],[1,c,a+b]]

Fill in the blanks with appropriate answer from the brackes. [[1,a,b+c],[1,b,c+a],[1,c,a+b]] =_______

Show that det[[1,a,b_(-)c1,b,c+a1,c,a+b]]=0

prove that det[[1,a,b+c1,b,c+a1,c,a+b]]=0

The value of the determinant {:abs((1,a,b+c),(1,b,c+a),(1 , c,a+b)):} is

Show that the matrix: [[a,1,b+c],[b,1,c+a],[c,1,a+b]] , is a singular matrix.

Write the value of the determinant |[a,1,b+c], [b,1,c+a] ,[c,1,a+b]| .

Show without expanding at any stage that: | [1,bc, a(b+c)],[1,ca, b(c+a)],[1,ab, c(a+b)]|=0

|[a, 1, b+c], [b, 1, c+a], [c, 1, a+b]|=?