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Va rog frumos ajutatima urgent


Va Rog Frumos Ajutatima Urgent class=

Răspuns :

log[2]9+log[2]18-4log[2]3=log[2]9+log[2]18-log[3]3^4=log[2]9·18/3^4=log[2]3^2·3^2·2/3^4=log[2]3^4·2/3^4=simplifici prin3^4 =log[2]2