close
    g n=n/2 (a+l) =n/2(a+l)

    gn0+12+60+168+360+660


    a=0  ,d=12,  l=

    0  Views: 560 Answers: 1 Posted: 12 years ago
    Bob/PKB

    There is no "d" in this equation. Please?

    1 Answer

    Here, go to this site: http://www.khanacademy.org/



    Top contributors in Uncategorized category

     
    ROMOS
    Answers: 18061 / Questions: 154
    Karma: 1101K
     
    Colleen
    Answers: 47269 / Questions: 115
    Karma: 953K
     
    country bumpkin
    Answers: 11322 / Questions: 160
    Karma: 838K
     
    Benthere
    Answers: 2392 / Questions: 30
    Karma: 760K
    > Top contributors chart

    Unanswered Questions

    Lý lịch tư pháp
    Answers: 0 Views: 5 Rating: 0
    Xe ghep Bac Ninh
    Answers: 0 Views: 8 Rating: 0
    king88t1com
    Answers: 0 Views: 5 Rating: 0
    j88teamcom
    Answers: 0 Views: 21 Rating: 0
    sportsbookieinfo
    Answers: 0 Views: 23 Rating: 0
    bk8vngame
    Answers: 0 Views: 22 Rating: 0
    > More questions...
    470754
    questions
    722814
    answers
    792877
    users