10th Class Mathematics Polynomials Question Bank Polynomials

  • question_answer
    Find the quadratic polynomial one of whose zeros is\[\frac{\sqrt{3}}{4}\]and the product of zeros is\[\frac{1}{2}\].

    A)  \[4\sqrt{3}{{x}^{2}}+5x+2\sqrt{3}\]

    B)  \[{{x}^{2}}+\frac{5}{4\sqrt{3}}x-\frac{1}{2}\]

    C)  \[4\sqrt{3}-5x+2\sqrt{3}\]

    D)  \[2{{x}^{2}}+\frac{5}{4\sqrt{3}}x-\frac{1}{2}\]

    Correct Answer: B

    Solution :

     Let a and P be the zeros of the required polynomial. Let\[={{\text{2}}^{\text{6}}}\times {{\text{5}}^{\text{2}}}\times {{\text{7}}^{\text{4}}}\text{c}{{\text{m}}^{\text{2}}}\], Given that \[2-\sqrt{4}=2-2=0\] \[{{(\sqrt{5})}^{2}}=5\] \[\sqrt{9}-\sqrt{4}=3-2=1\] So, the required polynomial \[\sqrt{2}-\sqrt{3}\]                 \[1789=29x+49\] \['x'\]    \[\therefore \]


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