The calcule of functions and limits [on hold]











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Could anyone help us?



We've got $f : (−1, 1) to mathbb{R}$ where $f(x) = dfrac{−1}{|x|^2}$ and we have to calculate $limlimits_{xto 0} f(x)$, using the definition of the limit. Then we have to define two functions ($g_1$ and $g_2$) using the following information:





  • $forall x in (−1, 1), f(x) leq g_1(x)$ and $limlimits_{xto 0} g_1(x)=−∞.$


  • $forall x in (−1, 1), f(x) leq g_2(x)$ and $limlimits_{xto 0} g_2(x)=−1 .$










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put on hold as off-topic by José Carlos Santos, John Douma, Vasya, RRL, Mark yesterday


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – José Carlos Santos, John Douma, Vasya, RRL, Mark

If this question can be reworded to fit the rules in the help center, please edit the question.

















    up vote
    -2
    down vote

    favorite












    Could anyone help us?



    We've got $f : (−1, 1) to mathbb{R}$ where $f(x) = dfrac{−1}{|x|^2}$ and we have to calculate $limlimits_{xto 0} f(x)$, using the definition of the limit. Then we have to define two functions ($g_1$ and $g_2$) using the following information:





    • $forall x in (−1, 1), f(x) leq g_1(x)$ and $limlimits_{xto 0} g_1(x)=−∞.$


    • $forall x in (−1, 1), f(x) leq g_2(x)$ and $limlimits_{xto 0} g_2(x)=−1 .$










    share|cite|improve this question















    put on hold as off-topic by José Carlos Santos, John Douma, Vasya, RRL, Mark yesterday


    This question appears to be off-topic. The users who voted to close gave this specific reason:


    • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – José Carlos Santos, John Douma, Vasya, RRL, Mark

    If this question can be reworded to fit the rules in the help center, please edit the question.















      up vote
      -2
      down vote

      favorite









      up vote
      -2
      down vote

      favorite











      Could anyone help us?



      We've got $f : (−1, 1) to mathbb{R}$ where $f(x) = dfrac{−1}{|x|^2}$ and we have to calculate $limlimits_{xto 0} f(x)$, using the definition of the limit. Then we have to define two functions ($g_1$ and $g_2$) using the following information:





      • $forall x in (−1, 1), f(x) leq g_1(x)$ and $limlimits_{xto 0} g_1(x)=−∞.$


      • $forall x in (−1, 1), f(x) leq g_2(x)$ and $limlimits_{xto 0} g_2(x)=−1 .$










      share|cite|improve this question















      Could anyone help us?



      We've got $f : (−1, 1) to mathbb{R}$ where $f(x) = dfrac{−1}{|x|^2}$ and we have to calculate $limlimits_{xto 0} f(x)$, using the definition of the limit. Then we have to define two functions ($g_1$ and $g_2$) using the following information:





      • $forall x in (−1, 1), f(x) leq g_1(x)$ and $limlimits_{xto 0} g_1(x)=−∞.$


      • $forall x in (−1, 1), f(x) leq g_2(x)$ and $limlimits_{xto 0} g_2(x)=−1 .$







      limits functions






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      edited yesterday









      Tianlalu

      2,574632




      2,574632










      asked yesterday









      MUG

      1




      1




      put on hold as off-topic by José Carlos Santos, John Douma, Vasya, RRL, Mark yesterday


      This question appears to be off-topic. The users who voted to close gave this specific reason:


      • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – José Carlos Santos, John Douma, Vasya, RRL, Mark

      If this question can be reworded to fit the rules in the help center, please edit the question.




      put on hold as off-topic by José Carlos Santos, John Douma, Vasya, RRL, Mark yesterday


      This question appears to be off-topic. The users who voted to close gave this specific reason:


      • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – José Carlos Santos, John Douma, Vasya, RRL, Mark

      If this question can be reworded to fit the rules in the help center, please edit the question.



























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