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Fie AB=15cm,iar M apartine(AB).Daca AM supra MB=2 supra 3,atunci MB=.....?

Răspuns :

Am/mb=2/3 2mb=3am Am=ab-mb Am=15-mb 2mb=3*(15-mb) 2mb=45-3mb 2mb+3mb=45 5mb=45 Mb=45/5 Mb=9