svp la deuxieme question exercice 1 comment faire merci en avance
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bjr
1/2 log25 + log8 = log√25 + log8 = log5 + log8 = log(5 x 8) = log40
1 + 2log2 = log10 + log2² = log10 + log4 = log(10 x 4) = log40