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Encuentre el area de la región que esta bajo la grafica de f sobre el intervalo dado \( f(x)=x+6 x^{2} \quad[1,4] \)

Ask by Fuentes Bernard. in Colombia
Mar 19,2025

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El área bajo la gráfica de \( f(x)=x+6x^2 \) en el intervalo \([1,4]\) es \(\frac{267}{2}\).

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Beyond the Answer

Para encontrar el área bajo la curva de \( f(x) = x + 6x^2 \) en el intervalo \([1, 4]\), primero necesitas calcular la integral definida de \( f \) desde 1 hasta 4. Esto se realiza como sigue: \[ \int_{1}^{4} (x + 6x^2) \, dx \] Calculando la integral, obtenemos: \[ \int (x + 6x^2) \, dx = \frac{x^2}{2} + 2x^3 + C \] Evaluando desde 1 hasta 4: \[ \left[ \frac{4^2}{2} + 2(4^3) \right] - \left[ \frac{1^2}{2} + 2(1^3) \right] = \left[ 8 + 128 \right] - \left[ 0.5 + 2 \right] \] Esto resulta en: \[ 136 - 2.5 = 133.5 \] Por lo tanto, el área bajo la gráfica de \( f(x) \) en el intervalo dado es 133.5 unidades cuadradas.

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