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Rasek [7]
3 years ago
11

If a geometric sequence has a1 = 256 and a8 = 512, find the exact value of the common ratio ????.

Mathematics
1 answer:
marusya05 [52]3 years ago
7 0

Answer:r=1.104

Step-by-step explanation:

Given

First term a_1=256

a_8=512

Also a_8 can also be written in

a_8=ar^7

where r=common difference

512=256r^7

2=r^7

r=\left ( 2\right )^{\frac{1}{7}}

r=1.104

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