Need help proving a statement about non-negative functions and integration












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a![a]



I've proved question 2 and I'm on question 3,



using the hint, I'm having troubles deducing why $f(x) > alpha /2$ - I think from there the answer is given (you get a contradiction with $d leq c$)










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    0












    $begingroup$


    a![a]



    I've proved question 2 and I'm on question 3,



    using the hint, I'm having troubles deducing why $f(x) > alpha /2$ - I think from there the answer is given (you get a contradiction with $d leq c$)










    share|cite|improve this question











    $endgroup$















      0












      0








      0





      $begingroup$


      a![a]



      I've proved question 2 and I'm on question 3,



      using the hint, I'm having troubles deducing why $f(x) > alpha /2$ - I think from there the answer is given (you get a contradiction with $d leq c$)










      share|cite|improve this question











      $endgroup$




      a![a]



      I've proved question 2 and I'm on question 3,



      using the hint, I'm having troubles deducing why $f(x) > alpha /2$ - I think from there the answer is given (you get a contradiction with $d leq c$)







      analysis






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      edited Dec 24 '18 at 7:26









      Glorfindel

      3,42981830




      3,42981830










      asked Feb 17 '14 at 17:09









      Josh UmpJosh Ump

      83




      83






















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          $begingroup$

          Hint. Think about the $varepsilon$-$delta$ definition of continuity.






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            1 Answer
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            $begingroup$

            Hint. Think about the $varepsilon$-$delta$ definition of continuity.






            share|cite|improve this answer









            $endgroup$


















              1












              $begingroup$

              Hint. Think about the $varepsilon$-$delta$ definition of continuity.






              share|cite|improve this answer









              $endgroup$
















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                $begingroup$

                Hint. Think about the $varepsilon$-$delta$ definition of continuity.






                share|cite|improve this answer









                $endgroup$



                Hint. Think about the $varepsilon$-$delta$ definition of continuity.







                share|cite|improve this answer












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                answered Feb 17 '14 at 17:15









                Karolis JuodelėKarolis Juodelė

                8,47311530




                8,47311530






























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