W ciągu geometrycznym dane są a1=4; a5= 64/81. Oblicz iloraz tego ciągu.
a₅=a₁g⁴
64/81=4q⁴
16/81=q⁴
q=2/3
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a₅=a₁g⁴
64/81=4q⁴
16/81=q⁴
q=2/3