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4. Coloca el signo \( \langle 0\rangle \) según corresponda. a. \( \frac{37}{144}+\frac{51}{12}+\frac{3}{6} \square \frac{17}{12}+\left(\frac{-24}{11}\right) \) b. \( \frac{24}{169}+\frac{83}{13} \square \frac{37}{125}+\frac{53}{15}+\frac{74}{5} \) c. \( \frac{6}{104}+\frac{19}{32}+\frac{43}{64} \square \frac{32}{29}+\frac{47}{17} \)

Ask by Powers Chen. in Colombia
Feb 24,2025

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a) \( \frac{37}{144}+\frac{51}{12}+\frac{3}{6} > \frac{17}{12}+\left(\frac{-24}{11}\right) \) b) \( \frac{24}{169}+\frac{83}{13} < \frac{37}{125}+\frac{53}{15}+\frac{74}{5} \) c) \( \frac{6}{104}+\frac{19}{32}+\frac{43}{64} < \frac{32}{29}+\frac{47}{17} \)

Solution

Analicemos cada inciso: a. Evaluamos:  • Lado izquierdo: 37/144 + 51/12 + 3/6   – 51/12 = 4.25   – 3/6 = 0.5   – 37/144 ≈ 0.257   Sumatoria ≈ 4.25 + 0.5 + 0.257 = 5.007  • Lado derecho: 17/12 + (–24/11)   – 17/12 ≈ 1.417   – –24/11 ≈ –2.182   Sumatoria ≈ 1.417 + (–2.182) = –0.765 Comparando: 5.007 > –0.765. Por lo tanto, se coloca el signo “>”. b. Evaluamos:  • Lado izquierdo: 24/169 + 83/13   – 83/13 ≈ 6.385   – 24/169 ≈ 0.142   Sumatoria ≈ 6.385 + 0.142 = 6.527  • Lado derecho: 37/125 + 53/15 + 74/5   – 37/125 ≈ 0.296   – 53/15 ≈ 3.533   – 74/5 = 14.8   Sumatoria ≈ 0.296 + 3.533 + 14.8 = 18.629 Comparando: 6.527 < 18.629. Por lo tanto, se coloca el signo “<”. c. Evaluamos:  • Lado izquierdo: 6/104 + 19/32 + 43/64   – 6/104 simplifica a 3/52 ≈ 0.0577   – 19/32 ≈ 0.5938   – 43/64 ≈ 0.6719   Sumatoria ≈ 0.0577 + 0.5938 + 0.6719 = 1.3234  • Lado derecho: 32/29 + 47/17   – 32/29 ≈ 1.1034   – 47/17 ≈ 2.7647   Sumatoria ≈ 1.1034 + 2.7647 = 3.8681 Comparando: 1.3234 < 3.8681. Por lo tanto, se coloca el signo “<”. Resumen de respuestas: a) > b) < c) <

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Para resolver estas comparaciones, necesitamos calcular el valor de cada lado de las desigualdades y determinar cuál es mayor, menor o igual. a. Primero, simplificamos y sumamos: \[ \frac{37}{144} + \frac{51}{12} + \frac{3}{6} = \frac{37}{144} + \frac{612}{144} + \frac{72}{144} = \frac{721}{144} \] Luego, la derecha es: \[ \frac{17}{12} + \left(\frac{-24}{11}\right) = \frac{17 \cdot 11}{12 \cdot 11} + \frac{-24 \cdot 12}{11 \cdot 12} = \frac{187 - 288}{132} = \frac{-101}{132} \] Comparando \(\frac{721}{144} \) con \(\frac{-101}{132}\), notamos que \(\frac{721}{144} > \frac{-101}{132}\). Así que la desigualdad es: \[ \frac{37}{144}+\frac{51}{12}+\frac{3}{6} > \frac{17}{12}+\left(\frac{-24}{11}\right) \] b. Vamos a sumar el lado izquierdo primero: \[ \frac{24}{169} + \frac{83}{13} = \frac{24}{169} + \frac{1079}{169} = \frac{1103}{169} \] Sumamos los demás: \[ \frac{37}{125} + \frac{53}{15} + \frac{74}{5} = \frac{37}{125} + \frac{265}{125} + \frac{1850}{125} = \frac{2152}{125} \] Ahora necesitamos comparar \(\frac{1103}{169}\) y \(\frac{2152}{125}\) multiplicando cruzado: \[ 1103 \cdot 125 \quad \text{y} \quad 2152 \cdot 169 \] Así que, \[ 137875 > 363088 \Rightarrow \frac{24}{169}+\frac{83}{13} > \frac{37}{125}+\frac{53}{15}+\frac{74}{5} \] c. Por último, sumamos el primer lado: \[ \frac{6}{104} + \frac{19}{32} + \frac{43}{64} = \frac{3}{52} + \frac{19 \cdot 2}{64} + \frac{43}{64} = \frac{3}{52} + \frac{38 + 43}{64} = \frac{3 \cdot 32 + 81}{256} = \frac{96 + 81}{256} = \frac{177}{256} \] El lado derecho: \[ \frac{32}{29} + \frac{47}{17} = \frac{32 \cdot 17 + 47 \cdot 29}{29 \cdot 17} = \frac{544 + 1363}{493} = \frac{1907}{493} \] Comparando la primera con la segunda, encontramos que finalmente queda: \[ \frac{6}{104}+\frac{19}{32}+\frac{43}{64} < \frac{32}{29}+\frac{47}{17} \] En resumen: a. \( \frac{37}{144}+\frac{51}{12}+\frac{3}{6} > \frac{17}{12}+\left(\frac{-24}{11}\right) \) b. \( \frac{24}{169}+\frac{83}{13} > \frac{37}{125}+\frac{53}{15}+\frac{74}{5} \) c. \( \frac{6}{104}+\frac{19}{32}+\frac{43}{64} < \frac{32}{29}+\frac{47}{17} \)

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