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Problems involving limits in calculus

  1. Sep 29, 2012 #1
    1. The problem statement, all variables and given/known data
    lim [(5^(n+1))+(7^(n+1))]/(5^n-7^n) as x→infinity
    lim [sec x - tan x] as x → ∏/2
     
  2. jcsd
  3. Sep 29, 2012 #2

    HallsofIvy

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    Sigh. So you did not read the introductory material nor look at very many posts here. If you had, you would have realized: "This is perhaps the most common mistake that new members make. When posting homework, if you do not make any attempt yourself, then other people are not allowed to help at all!! This holds particularly true in the homework forums!"
     
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