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18. SI \( \underline{x=0,125} \), entonces \( \frac{1}{0,75-x}-\frac{1}{0,25-x}= \)

Ask by Moran Nunez. in Chile
Feb 11,2025

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Answer

La respuesta es –6,4.

Solution

Para resolver la expresión   1/(0,75 – x) – 1/(0,25 – x) con x = 0,125, sustituimos:   0,75 – 0,125 = 0,625   0,25 – 0,125 = 0,125 Entonces queda:   1/0,625 – 1/0,125 Calculamos cada término: • 1/0,625 = 1/(5/8) = 8/5 = 1,6 • 1/0,125 = 1/(1/8) = 8 Por lo tanto:   1,6 – 8 = –6,4 La respuesta es –6,4.

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Para resolver la expresión \( \frac{1}{0,75-x}-\frac{1}{0,25-x} \) donde \( x = 0,125 \), primero sustituimos \( x \) en la ecuación: 1. Calculemos cada término: - \( 0,75 - 0,125 = 0,625 \) - \( 0,25 - 0,125 = 0,125 \) 2. Sustituyendo en la expresión: \[ \frac{1}{0,625} - \frac{1}{0,125} \] 3. Evaluamos los términos: - \( \frac{1}{0,625} = 1,6 \) - \( \frac{1}{0,125} = 8 \) 4. Por lo tanto: \[ 1,6 - 8 = -6,4 \] Así que la respuesta es \( -6,4 \).

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