Recent content by schmitt

  1. S

    Derivation of f(x)=xcos(sen(x)) – 1

    Got it solved already, sorry for the bad english. Topic can be deleted.
  2. S

    Derivation of f(x)=xcos(sen(x)) – 1

    Hi Could someone help me derivating this function: f(x)=xcos(sen(x)) – 1 f'(x)= ? f''(x)= ? Thank you.
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