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To find the area between the curves \(f(x) = x\) and \(f(x) = x^2\) in the interval \(0 \leq x \leq 1\), follow these steps: 1. **Set up the integral**: The area between the curves is given by the integral of the difference between the two functions over the given interval: \[ \int_0^1 (x - x^2) \, dx \] 2. **Evaluate the integral**: \[ \int_0^1 (x - x^2) \, dx = \int_0^1 x \, dx - \int_0^1 x^2 \, dx \] 3. **Find the antiderivatives**: \[ \int x \, dx = \frac{x^2}{2} + C \] \[ \int x^2 \, dx = \frac{x^3}{3} + C \] 4. **Apply the limits of integration**: \[ \left[ \frac{x^2}{2} \right]_0^1 - \left[ \frac{x^3}{3} \right]_0^1 \] 5. **Evaluate the definite integrals**: \[ \left[ \frac{x^2}{2} \right]_0^1 = \frac{1^2}{2} - \frac{0^2}{2} = \frac{1}{2} \] \[ \left[ \frac{x^3}{3} \right]_0^1 = \frac{1^3}{3} - \frac{0^3}{3} = \frac{1}{3} \] 6. **Subtract the results**: \[ \frac{1}{2} - \frac{1}{3} = \frac{3}{6} - \frac{2}{6} = \frac{1}{6} \] So, the area between the curves \(f(x) = x\) and \(f(x) = x^2\) in the interval \(0 \leq x \leq 1\) is \(\frac{1}{6}\). The correct answer is: - \(\frac{1}{6}\)

Question

To find the area between the curves f(x)=xf(x) = x and f(x)=x2f(x) = x^2 in the interval 0x10 \leq x \leq 1, follow these steps: 1. Set up the integral: The area between the curves is given by the integral of the difference between the two functions over the given interval: 01(xx2)dx \int_0^1 (x - x^2) \, dx 2. Evaluate the integral: 01(xx2)dx=01xdx01x2dx \int_0^1 (x - x^2) \, dx = \int_0^1 x \, dx - \int_0^1 x^2 \, dx 3. Find the antiderivatives: xdx=x22+C \int x \, dx = \frac{x^2}{2} + C x2dx=x33+C \int x^2 \, dx = \frac{x^3}{3} + C 4. Apply the limits of integration: [x22]01[x33]01 \left[ \frac{x^2}{2} \right]_0^1 - \left[ \frac{x^3}{3} \right]_0^1 5. Evaluate the definite integrals: [x22]01=122022=12 \left[ \frac{x^2}{2} \right]_0^1 = \frac{1^2}{2} - \frac{0^2}{2} = \frac{1}{2} [x33]01=133033=13 \left[ \frac{x^3}{3} \right]_0^1 = \frac{1^3}{3} - \frac{0^3}{3} = \frac{1}{3} 6. Subtract the results: 1213=3626=16 \frac{1}{2} - \frac{1}{3} = \frac{3}{6} - \frac{2}{6} = \frac{1}{6} So, the area between the curves f(x)=xf(x) = x and f(x)=x2f(x) = x^2 in the interval 0x10 \leq x \leq 1 is 16\frac{1}{6}. The correct answer is: - 16\frac{1}{6}

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Solution

Para encontrar el área entre las curvas f(x)=xf(x) = x y f(x)=x2f(x) = x^2 en el intervalo 0x10 \leq x \leq 1, sigue estos pasos:

  1. Configura la integral: El área entre las curvas se da por la integral de la diferencia entre las dos funciones sobre el intervalo dado: 01(xx2)dx \int_0^1 (x - x^2) \, dx

  2. Evalúa la integral: 01(xx2)dx=01xdx01x2dx \int_0^1 (x - x^2) \, dx = \int_0^1 x \, dx - \int_0^1 x^2 \, dx

  3. Encuentra las antiderivadas: xdx=x22+C \int x \, dx = \frac{x^2}{2} + C x2dx=x33+C \int x^2 \, dx = \frac{x^3}{3} + C

  4. Aplica los límites de integración: [x22]01[x33]01 \left[ \frac{x^2}{2} \right]_0^1 - \left[ \frac{x^3}{3} \right]_0^1

  5. Evalúa las integrales definidas: [x22]01=122022=12 \left[ \frac{x^2}{2} \right]_0^1 = \frac{1^2}{2} - \frac{0^2}{2} = \frac{1}{2} [x33]01=133033=13 \left[ \frac{x^3}{3} \right]_0^1 = \frac{1^3}{3} - \frac{0^3}{3} = \frac{1}{3}

  6. Resta los resultados: 1213=3626=16 \frac{1}{2} - \frac{1}{3} = \frac{3}{6} - \frac{2}{6} = \frac{1}{6}

Por lo tanto, el área entre las curvas f(x)=xf(x) = x y f(x)=x2f(x) = x^2 en el intervalo 0x10 \leq x \leq 1 es 16\frac{1}{6}. La respuesta correcta es: - 16\frac{1}{6}

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