wzor ogolny ciagu geometrycznego 2,2/3,2/9...ma postac
q=a2/a1=2/3/2=1/3
an=a1*q^(n-1)=2*(1/3)^(n-1)
a₁=2
a₂=⅔
a₃=2/9
q=a₂:a₁
q=⅔:2=⅔*½=⅓
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q=a2/a1=2/3/2=1/3
an=a1*q^(n-1)=2*(1/3)^(n-1)
a₁=2
a₂=⅔
a₃=2/9
q=a₂:a₁
q=⅔:2=⅔*½=⅓