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Hallar la derivade \( y=\sqrt{r^{2}-x^{2}} \)

Ask by Powell Ward. in Colombia
Jan 22,2025

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La derivada de \( y = \sqrt{r^{2} - x^{2}} \) con respecto a \( x \) es \( \frac{ -x }{ \sqrt{ r^{2} - x^{2} } } \).

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The Deep Dive

Para hallar la derivada de la función \( y = \sqrt{r^{2} - x^{2}} \), puedes usar la regla de la cadena. Primero, reescribe la función en forma de potencia: \( y = (r^{2} - x^{2})^{1/2} \). Al aplicar la derivada, obtenemos: \[ \frac{dy}{dx} = \frac{1}{2}(r^{2} - x^{2})^{-1/2} \cdot (-2x) = -\frac{x}{\sqrt{r^{2} - x^{2}}} \] Así que la derivada es \( \frac{dy}{dx} = -\frac{x}{\sqrt{r^{2} - x^{2}}} \). Ahora, recuerda que si \( x \) se aproxima a \( r \), la derivada puede volverse indefinida, ya que el denominador se aproxima a cero. Así que siempre es importante analizar el dominio de la función para evitar pérdidas de información.

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