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a1=2 and a4= 128
plls pakisagot na ngayun​


Sagot :

Answer:

1.a=2

2.a=32

Step-by-step explanation:

Sana makatulong po

And pabrainliness po

Answer:

r=4

Step-by-step explanation:

An=A1r (n-1)

128=2r(4-1)

64=r³

4³=r³

r=4

pa brainliest❤