Answer:
Let
Multiplying R1,
R2 and R3 by x, y and z respectively, we get
Taking xyz as
common from C3
Operate we get
Taking (y ? x)
and (z ? x) as common from R2 and R3, we get
Expand along C3,
we get
Operate
Taking y ? z as
common from R1
= (y ? x) (z ?
x) (y ? z)
[z2
+ zx + x2 ? (z + x) (x + y + z)]
= (y ? x) (z ?
x) (z2 + zx + x2 ? zx ? zy ? z2 ? x2 ?
xy ? zx)
= (y ? x)
(z ? x) (y ? z) (?xy ? yz ? zx)
= (x ? y)
(y ? z) (z ? x) (xy + yz + zx)
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