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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-18

  • question_answer
    If \[\sqrt{3{{x}^{2}}-4\sqrt{3}{{x}^{2}}-2{{x}^{2}}+4\sqrt{3}x+3}=(a{{x}^{2}}+bx+c),\] then which one of the following is incorrect?

    A)  A and B are of different sign

    B)  \[{{b}^{2}}+2\,ac=2\]

    C)  \[2bc=4\sqrt{3}\]

    D)  \[ab=-\,2\sqrt{3}\]

    E)  None of these

    Correct Answer: B

    Solution :

     Not Available


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