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calculati media geometrica a=(radical 5+radical3) la puterea a doua si b=(radical5 -radical3 ) la puterea a doua

Răspuns :

Mg =√a·b
Mg = √(√5 +√3)²(√5- √3 )² =(√5+√3)(√5 - √3)= √5²- √3²= 5-3 =2