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Please help with these questions-limits etc. Watch

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    I've attached the questions, thank you so much in advance.
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    Could you start the problems yourself?
    let us know what you have tried, im sure people will want to help, but few would be okay with doing it for you
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    I require some assistance with 2,3,4. with 3 i think it is either b or f or both not sure though. Thanks
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    For question 3- For (b) i can show its less than for any n but not equal so not sure and same for (f) can show its greater than but not the equal part.
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      (Original post by betapro)
      For question 3- For (b) i can show its less than for any n but not equal so not sure and same for (f) can show its greater than but not the equal part.
      So what did you do for 3 (b)?
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      (Original post by betapro)
      For question 3- For (b) i can show its less than for any n but not equal so not sure and same for (f) can show its greater than but not the equal part.
      b and f are correct and the answer is 4 - the 'or equal to' part is unnecessary but used in all of them so you can ignore it - the statements are still true

      what have you tried for 2&4?
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      I just tried tons of numbers for small n and large and always worked but cant find an n that it is equal or a way of showing mathematically that they are
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        (Original post by betapro)
        I just tried tons of numbers for small n and large and always worked but cant find an n that it is equal or a way of showing mathematically that they are
        Does this make any sense to you?
        \displaystyle \frac{n-1}{n^2+1} \le \frac{n}{n^2+1}
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        Yes, where from there?
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        oh and then u get rid of 1 and then get 1/n
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        So then B is correct right? what about f
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          (Original post by betapro)
          So then B is correct right? what about f
          Difference of squares?
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          (Original post by MathMoFarah)
          b and f are correct and the answer is 4 - the 'or equal to' part is unnecessary but used in all of them so you can ignore it - the statements are still true

          what have you tried for 2&4?
          Yes for 2 i got 6) so L=1 and not a clue how to do 4
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          (Original post by betapro)
          Yes for 2 i got 6) so L=1 and not a clue how to do 4
          your 2 is right

          you have to manipulate things for 6 until you get something that HAS to follow the inequality
          i.e. a higher denominator and lower numerator always guarantees a lower number
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          (Original post by MathMoFarah)
          your 2 is right

          you have to manipulate things for 6 until you get something that HAS to follow the inequality
          i.e. a higher denominator and lower numerator always guarantees a lower number
          For problem 6 i got 5 as my answer? How do u do q4 or is that what u were talkikng about?
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          (Original post by EricPiphany)
          Difference of squares?
          So would you agree that it is b and f correct for q3?
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            (Original post by betapro)
            For problem 6 i got 5 as my answer? How do u do q4 or is that what u were talkikng about?
            How did you get 5 though?
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            (Original post by EricPiphany)
            How did you get 5 though?
            Found values for which absolute values vanish and split into three intervals and then tested each one
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              (Original post by betapro)
              So would you agree that it is b and f correct for q3?
              Yes.
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              (Original post by EricPiphany)
              Yes.
              Great thanks Have you had a look at q4? I am currently doing it, also did u get same answers for 6 then?
             
             
             
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