, we need to find the value of r first. And we are going to do that using the formula 
 
and 
, so we can replace that in our equation to get:
![r= \sqrt[3]{-64}](/tpl/images/0334/6030/05302.png)
(9.) in a geometric sequence, it is known that a1= -1 and a4= 64. the value of a10
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Mathematics, 19.10.2019 14:30 shyann78
(9.) in a geometric sequence, it is known that a1= -1 and a4= 64. the value of a10
Answers: 3
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