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Mathematics, 02.02.2021 14:00 DanielleSalv

Na calculadora, apertei algumas teclas. Depois, pressionei tres vezes a tecla =, e apareceu a sequência: 420

a-) Quais teclas apertei inicialmente?

b-) Se eu apertar mais três vezes a tecla =, que números aparecerão?

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Na calculadora, apertei algumas teclas. Depois, pressionei tres vezes a tecla =, e apareceu a sequên...
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