October 2023 2 13 Report
AYUDA POR FAVOR¡¡¡¡¡¡¡¡¡

Halla el término general de las siguientes progresiones geométricas, así como los números de las posiciones a7, a11, a15 y a20.
a) an = (10,20,40,80,160)
b) an = (2, 6, 18, 54, 162, ...)
c) an = (1, 5, 25, 125, 625, ...)
d) an = (2/3, 2, 6, 18, 54, ...)
e) an = (1, 2, 4, 8, 16, ...)
f) an = (5, 10, 20, 40, ...)
g) bn = (2, 3.4, 5.78, 9.826, ...)
h) an = (1, 7, 49, 343, ...)
i) bn = (24, 72, 216, 648, ...)
j) an = ( 1, 7, 49, ...)

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