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8) \( \frac{1^{0}+2^{-1}}{3^{-2}+4^{-1}} \)

Ask by Williams George. in Ecuador
Jan 23,2025

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Answer

\[ \frac{54}{13} \approx 4.1538 \]

Solution

Para resolver la expresión: \[ \frac{1^{0} + 2^{-1}}{3^{-2} + 4^{-1}} \] **Paso 1: Evaluar cada término con exponentes negativos y positivos** 1. \( 1^{0} = 1 \) (Cualquier número diferente de cero elevado a la potencia de cero es 1) 2. \( 2^{-1} = \frac{1}{2} \) 3. \( 3^{-2} = \frac{1}{3^{2}} = \frac{1}{9} \) 4. \( 4^{-1} = \frac{1}{4} \) **Paso 2: Sustituir los valores obtenidos en la expresión original** \[ \frac{1 + \frac{1}{2}}{\frac{1}{9} + \frac{1}{4}} \] **Paso 3: Simplificar el numerador y el denominador** - **Numerador:** \[ 1 + \frac{1}{2} = \frac{2}{2} + \frac{1}{2} = \frac{3}{2} \] - **Denominador:** \[ \frac{1}{9} + \frac{1}{4} = \frac{4}{36} + \frac{9}{36} = \frac{13}{36} \] **Paso 4: Dividir el numerador por el denominador** \[ \frac{\frac{3}{2}}{\frac{13}{36}} = \frac{3}{2} \times \frac{36}{13} = \frac{3 \times 36}{2 \times 13} = \frac{108}{26} = \frac{54}{13} \] **Paso 5: Expresar el resultado como número decimal (opcional)** \[ \frac{54}{13} \approx 4.1538 \] **Respuesta Final:** \[ \frac{1^{0} + 2^{-1}}{3^{-2} + 4^{-1}} = \frac{54}{13} \approx 4.1538 \]

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Let's break this down step by step! First, we evaluate the terms in the numerator: - \( 1^{0} = 1 \) (any non-zero number raised to the power of 0 is 1) - \( 2^{-1} = \frac{1}{2} \) So, the numerator becomes: \[ 1 + \frac{1}{2} = \frac{2}{2} + \frac{1}{2} = \frac{3}{2} \] Now for the denominator: - \( 3^{-2} = \frac{1}{3^{2}} = \frac{1}{9} \) - \( 4^{-1} = \frac{1}{4} \) Next, we find a common denominator for the denominator: \[ \frac{1}{9} + \frac{1}{4} = \frac{4}{36} + \frac{9}{36} = \frac{13}{36} \] Now, we put it all together: \[ \frac{\frac{3}{2}}{\frac{13}{36}} \] Dividing by a fraction is the same as multiplying by its reciprocal: \[ \frac{3}{2} \times \frac{36}{13} = \frac{108}{26} = \frac{54}{13} \] Thus, the final answer is: \[ \frac{54}{13} \]

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