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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-16

  • question_answer
    Factorise : \[{{a}^{4}}(b-c)+{{b}^{4}}(c-a)+{{c}^{4}}(a-b)\]

    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 :

     Not Available


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