October 2023 2 11 Report
1- 2-
• a + − = + (−) • + (− + ) − = − (− − )


• − + =




3- 4-
• − + − − + − + − • (−) × (+) × (−)



• (+)×(−) (+)×(−)




5- Si: A=(−) y B=(+) Hallar: “B – A” 6- Calcular:
| + (−) − | + [ + (−) × (|−|)]

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