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If one zero of the polynomial …

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If one zero of the polynomial p(x) =(k+4)x2 +13x +3k is the reciprocal of the other, then the value of k is

    • Posted by Prabhjot Kaur 5 years, 3 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Yogita Ingle 5 years, 3 months ago

    Let the first zero be x then the another one is 1/x
    now , alpha × beta = c/a
    x × 1/x = 3k/k+4
    1 = 3k/k+4
    k+4 =3k
    4= 2k
    therefore, k =2

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