Найти знаменатель геометр.прогрессии:
3√3;-3;√3
q=b[2]:b[1]=b[3]:b[2]
q=√3:(-3)=-1/√3 или (-√3/3)
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q=b[2]:b[1]=b[3]:b[2]
q=√3:(-3)=-1/√3 или (-√3/3)