A) \[(a-b)(b-c)(c+a)({{a}^{2}}+{{b}^{2}}+{{c}^{2}}+ab-bc-ca)\]
B) \[-(a-b)(b-c)(c-a)\]\[({{a}^{2}}+{{b}^{2}}+{{c}^{2}}+ab+bc+ca)\]
C) \[-(b-a)(c-b)(a-c)\]\[({{a}^{2}}+{{b}^{2}}+{{c}^{2}}-ab-bc-ca)\]
D) \[(a+b)(b+c)(c+a)\]\[({{a}^{2}}+{{b}^{2}}+{{c}^{2}}+ab+bc+ca)\]
E) None of these
Correct Answer: B
Solution :
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