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7th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-7

  • question_answer
    Find the value of \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}-ab-bc-ca,\] if  \[a=1,\] \[b=2\] and \[c=3\].

    A)  2                                

    B)  1

    C)  3        

    D)  7

    E)  None of these

    Correct Answer: C

    Solution :

     Not Available               


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