lim sinx/x =1 : How to prove (3)

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  • Опубліковано 4 лип 2024
  • By: Assem Hangal .. Arabian voice
    Contacts: assem_hangal@hotmail.com
    شرح: عاصم حنجل

КОМЕНТАРІ • 8

  • @davemart
    @davemart 26 днів тому +1

    That works. You could also use l'Hopital's rule and get a result quicker

    • @assemhangal
      @assemhangal  26 днів тому

      Yes. But this way is simpler for undergraduates.

    • @cyrusrosales3127
      @cyrusrosales3127 26 днів тому +3

      No, you cannot, because the proof that the derivative of sin(x) is cos(x) requires that the limit as x approaches 0 of sin(x)/x to be 1 which is literally the thing were trying to prove, thats a bad case of circular reasoning

  • @Militarisiert
    @Militarisiert 26 днів тому

    Erweitern sie den sinx durch die Taylor Reihe

  • @graptemys4186
    @graptemys4186 25 днів тому

    You just proved 1 < 1. I don't think so!

    • @exeria671
      @exeria671 25 днів тому

      it's just approximation

    • @RexxSchneider
      @RexxSchneider 25 днів тому

      Yes, he wasn't very careful about his inequalities, since if x = 0 those are no longer strict inequalities. In other words, we need to say that sin(x)

  • @wallacetosh2839
    @wallacetosh2839 25 днів тому +1

    Why in heaven's name would I want to.? It adds nothing to our betterment of life.🤮