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Ask by Clarke Watson. in Mexico
Mar 26,2025

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Answer

La función es una función coseno con amplitud 1, período , y oscila entre -1 y 1. Tiene puntos críticos en para cualquier entero .

Solution

Para analizar la función , podemos considerar varios aspectos, como su dominio, rango, periodicidad y puntos críticos.
  1. Dominio: La función coseno está definida para todos los números reales, por lo que el dominio de es .
  2. Rango: El rango de la función coseno es siempre entre -1 y 1. Por lo tanto, el rango de también es .
  3. Periodicidad: La función tiene un período de . En este caso, , así que el período de es:
    í
  4. Puntos críticos: Para encontrar los puntos críticos, podemos derivar la función y encontrar los valores de donde la derivada es cero. La derivada de es:
    Para encontrar los puntos críticos, resolvemos:
    Esto ocurre cuando , lo que sucede en:
    Por lo tanto, los puntos críticos son:
Si necesitas más información o un análisis más detallado, házmelo saber.

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The function is a cosine wave that undergoes a horizontal compression due to the coefficient of 3 in front of . This means that it completes its cycles more rapidly, specifically three times faster than the standard cosine function. The period of the cosine function is given by , where is the coefficient of . Thus, for this function, the period is .
If you want to visualize this function, graphing it can be quite illuminating! You’ll see it oscillating between -1 and 1 with its peaks and troughs coming swiftly in comparison to a regular cosine wave. This characteristic can be particularly useful in fields like physics and engineering, where changes occur in a wave-like manner, making it applicable in scenarios like sound waves, alternating currents, or even modeling seasonal variations.

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