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Sa(arytmetyczna)= 2+8 przez 2 =5
Sg(geometryczna)=4
Sh(harmoniczna)=3,2
b)Sa=7
Sg=4
Sh=2 i 2/7
c)Sa=12,5
Sg=12
Sh=11,52
d)Sa=Sg=Sh=3
a)Sg=20
b)Sg=0,6
c)Sg=3