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If a+b =11 ,a^2+b^2=61,find a^3++ b^3

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If a+b =11 ,a^2+b^2=61,find a^3++ b^3

    • Posted by Ankita Gupta 1 year, 2 months ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Gaurav Singh 1 year, 2 months ago

    a²+b² = (a+b)² - 2ab. 61 =(11)² - 2ab. 61=121-2ab. ab =30. a³+b³ =(a+b) (a²+b²+ab). = 11 + (61 + 30) = 11 x 181 = 1991

    1Thank You

    Akshayaasree Akshayaasree 1 year, 2 months ago

    2x2x2x=

    3Thank You

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