a1 = 1
a4 = 27
Wzór ogólny an=a1*r^n-1
a4 = a1*r^3
27=r^3
r = 3
1, 3,9,27
x =3
y =9
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a1 = 1
a4 = 27
Wzór ogólny an=a1*r^n-1
a4 = a1*r^3
27=r^3
r = 3
1, 3,9,27
x =3
y =9