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media geometrica a nr :a=(7√2+7)(7√2-7) si b=2,(7)

Răspuns :

Renatemambouko
a=(7√2+7)(7√2-7) =49×2-49=49
b=2,(7)=(27-2) /9=25/9
Mg=√49×25/9=7×5/3=35/3=11,(6)

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