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If a= 2n + 13, b= …

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If a= 2n + 13, b= n+ 7 where n is a natural number then hcf of a and b is A) 2. B) 1. C) 4. D) 3

    • Posted by V Charlene 6 years, 4 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Sia ? 6 years, 4 months ago

    Taking different values of n, we find that A and B are co-prime.
    When {tex}n = 1, A =1 5, B = 8{/tex}
    When {tex}n = 2, A = 17, B = 9{/tex}
    When {tex}n = 3, A = 19, B = 10{/tex} and so on....
    Therefore, {tex}HCF = 1{/tex}

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