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If alpha and beta r the zeroes of the polynomial p(x)=x^2-6x+k, find the values of k such that alpha^2 + beta^2 =40

    • Posted by Lakshmipriya V Pai 7 years, 4 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Ragavraj Vikas 7 years, 4 months ago

    Alpha +beta is 6 (A+B)^2=A^2+B^2+2AB AB= K 6^2=40+2K 36-40=2K -4/2=K K=-2

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