Znajdź ogólny wyraz ciągu geometrycznego wiedząc, że a1= -2 i a4= -16
a₄=a₁q³
-16=(-2)q³
q³=-16/-2
q³=8
q=2
.............
an=a₁q do potegi (n-1)
an=-2× q do potegi (n-1)
an=-2×2 do potegi (n-1)
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a₄=a₁q³
-16=(-2)q³
q³=-16/-2
q³=8
q=2
.............
an=a₁q do potegi (n-1)
an=-2× q do potegi (n-1)
an=-2×2 do potegi (n-1)