Bonsoir,
Calculer :
= 123,4 × 10‐¹²
= 1,234 × 10‐¹⁰
= 7×(-4)-(-3)×5
= -28-(-3)×5
= -28+3×5
= -28+15
= -13
= 5/-12+5/9
= -5/12+5/9
= -15+20/36
= 5/36
Bonne soirée.
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Bonsoir,
Calculer :
= 123,4 × 10‐¹²
= 1,234 × 10‐¹⁰
= 7×(-4)-(-3)×5
= -28-(-3)×5
= -28+3×5
= -28+15
= -13
= 5/-12+5/9
= -5/12+5/9
= -15+20/36
= 5/36
Bonne soirée.