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Sagot :
Vamos a completar la Tabla 1.19, siguiendo las operaciones requeridas para cada fila.
### Primera fila:
1. Dados [tex]\(a = 2\)[/tex], [tex]\(b = 4\)[/tex], [tex]\(c = 3\)[/tex]:
- [tex]\(a + b = 2 + 4 = 6\)[/tex]
- [tex]\(c \cdot b = 3 \cdot 4 = 12\)[/tex]
- [tex]\(a + b - c = 6 - 3 = 3\)[/tex]
### Segunda fila:
2. Dados [tex]\(a = -2\)[/tex], [tex]\(b = -5\)[/tex], [tex]\(c = -8\)[/tex]:
- [tex]\(a + b = -2 + (-5) = -7\)[/tex]
- [tex]\(c \cdot b = -8 \cdot (-5) = 40\)[/tex] (nota que el producto de dos negativos es positivo)
- [tex]\(a + b - c = -7 - (-8) = -7 + 8 = 1\)[/tex]
### Tercera fila:
3. Dados [tex]\(a = 9\)[/tex], [tex]\(b = -9\)[/tex], [tex]\(c = 4\)[/tex]:
- [tex]\(a + b = 9 + (-9) = 0\)[/tex]
- [tex]\(c \cdot b = 4 \cdot (-9) = -36\)[/tex]
- [tex]\(a + b - c = 0 - 4 = -4\)[/tex]
### Cuarta fila:
4. Dados [tex]\(a = 5\)[/tex], [tex]\(b = 12\)[/tex], [tex]\(c = -7\)[/tex]:
- [tex]\(a + b = 5 + 12 = 17\)[/tex]
- [tex]\(c \cdot b = -7 \cdot 12 = -84\)[/tex]
- [tex]\(a + b - c = 17 - (-7) = 17 + 7 = 24\)[/tex]
Ahora, completamos la tabla con nuestros cálculos:
[tex]\[ \begin{tabular}{|c|cc|ccc|} \hline $a$ & $b$ & $c$ & $a+b$ & $c \cdot b$ & $a+b-c$ \\ \hline 2 & 4 & 3 & 6 & 12 & 3 \\ -2 & -5 & -8 & -7 & 40 & 1 \\ 9 & -9 & 4 & 0 & -36 & -4 \\ 5 & 12 & -7 & 17 & -84 & 24 \\ \hline \end{tabular} \][/tex]
Este es el resultado final obtenido después de realizar todas las operaciones necesarias para completar la Tabla 1.19.
### Primera fila:
1. Dados [tex]\(a = 2\)[/tex], [tex]\(b = 4\)[/tex], [tex]\(c = 3\)[/tex]:
- [tex]\(a + b = 2 + 4 = 6\)[/tex]
- [tex]\(c \cdot b = 3 \cdot 4 = 12\)[/tex]
- [tex]\(a + b - c = 6 - 3 = 3\)[/tex]
### Segunda fila:
2. Dados [tex]\(a = -2\)[/tex], [tex]\(b = -5\)[/tex], [tex]\(c = -8\)[/tex]:
- [tex]\(a + b = -2 + (-5) = -7\)[/tex]
- [tex]\(c \cdot b = -8 \cdot (-5) = 40\)[/tex] (nota que el producto de dos negativos es positivo)
- [tex]\(a + b - c = -7 - (-8) = -7 + 8 = 1\)[/tex]
### Tercera fila:
3. Dados [tex]\(a = 9\)[/tex], [tex]\(b = -9\)[/tex], [tex]\(c = 4\)[/tex]:
- [tex]\(a + b = 9 + (-9) = 0\)[/tex]
- [tex]\(c \cdot b = 4 \cdot (-9) = -36\)[/tex]
- [tex]\(a + b - c = 0 - 4 = -4\)[/tex]
### Cuarta fila:
4. Dados [tex]\(a = 5\)[/tex], [tex]\(b = 12\)[/tex], [tex]\(c = -7\)[/tex]:
- [tex]\(a + b = 5 + 12 = 17\)[/tex]
- [tex]\(c \cdot b = -7 \cdot 12 = -84\)[/tex]
- [tex]\(a + b - c = 17 - (-7) = 17 + 7 = 24\)[/tex]
Ahora, completamos la tabla con nuestros cálculos:
[tex]\[ \begin{tabular}{|c|cc|ccc|} \hline $a$ & $b$ & $c$ & $a+b$ & $c \cdot b$ & $a+b-c$ \\ \hline 2 & 4 & 3 & 6 & 12 & 3 \\ -2 & -5 & -8 & -7 & 40 & 1 \\ 9 & -9 & 4 & 0 & -36 & -4 \\ 5 & 12 & -7 & 17 & -84 & 24 \\ \hline \end{tabular} \][/tex]
Este es el resultado final obtenido después de realizar todas las operaciones necesarias para completar la Tabla 1.19.
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