The determinant is:
−a2baacab−b2bcacbc−c2
Factor out a from Row 1, b from Row 2, and c from Row 3:
=abc−aaab−bbcc−c
Expanding along Row 1:
−aaab−bbcc−c=−a−bbc−c−baac−c+caa−bb
Calculate each 2×2 determinant:
−bbc−c=(−b)(−c)−(c)(b)=bc−bc=0
aac−c=a(−c)−(c)(a)=−ac−ac=−2ac
aa−bb=a(b)−(−b)(a)=ab+ab=2ab
Substituting back:
=−a(0)−b(−2ac)+c(2ab)
=0+2abc+2abc
=4abc
The complete determinant value:
Determinant=abc×4abc
=4a2b2c2
Therefore: k=4, l=2, m=2, n=2
(A) l=m=n=2 matches with (III)
(B) k+l+m+n=4+2+2+2=10 matches with (I)
(C) k2+l2+(m−n)2=42+22+(2−2)2=16+4+0=20 matches with (IV)
(D) l2+m2+(n−k)=22+22+(2−4)=4+4+(−2)=6 matches with (II)
The correct matching is: (A) - (III), (B) - (I), (C) - (IV), (D) - (II)