\begin{vmatrix} a+b-2 &a+b &a+b+2 \\ b-1 &b &b+1 \\ c-1 &c &c+1 \end{vmatrix}
for values of (a,b,c)=(12,17,8)
find the value of determinant
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\begin{vmatrix} a+b-2 &a+b &a+b+2 \\ b-1 &b &b+1 \\ c-1 &c &c+1 \end{vmatrix}
for values of (a,b,c)=(12,17,8)
find the value of determinant