derivata!!

Discussione in 'Matematica' iniziata da studentessa8888, 17 Ottobre 2010.

  1. studentessa8888

    studentessa8888 Primino Utente

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    Come Si Calcola La Derivata Di Y=arccos (1/x)
     
  2. franceinstein

    franceinstein Primino Utente

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    La derivata dell'arcocoseno è espressa nella formula:
    $$D(arccosx)= \frac{1}{\sqrt{1-x^2}}$$
    Quindi nel nostro caso sarà:
    $$D(arccos{\frac{1}{x}})= \frac{1}{\sqrt{1- \frac{1}{x^2}}} \cdot D(\frac{1}{x})=\\
    =\frac{-\frac{1}{x^2}}{\sqrt{\frac{x^2-1}{x^2}}}=\\
    \frac{-\frac{1}{x^2}}{\frac{1}{x}\sqrt{x^2-1}}=\\
    =- \frac{1}{x \sqrt{x^2-1}}$$
    spero di essre stato utile...ciao
     
  3. zaohua768

    zaohua768 Primino Utente

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    Integrated foreign media reports, Mexico a 20-year-old female student was appointed as the country's northern border a deeply troubled by the drug violence in the town's police Chief, the reason is simple — no one dared to the job.

    Mexico-US border town of Guadalupe population of only 1 million. 19 may, the Mayor's Office told the media, major in Criminology female student Mary Sol · Valles · added Portia is "the only one willing to accept the position of the person". Add Marcia in Mexico violence most polluted cities in Ciudad Juárez, and she's going to work in the small town is located in the eastern part of Juarez is approximately 80 kilometres. Juarez drug trafficking are rampant, and violence occurring frequently in the past 3 years on drug trafficking groups violence cause approximately 6500 people lost their lives.
     

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