Question: Step 3 In the series 8 - 9 + ( 8 1 ) / ( 8 ) - ( 7 2 9 ) / (

Step 3
In the series 8-9+(81)/(8)-(729)/(64)+cdots, the n=3 term is (81)/(8).
If this is to equal ar^(2)=a(-(9)/(8))^(2), then a=
Step 4
Similarly, -(729)/(64)=
(-(9)/(8))^(3).
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Step 3 In the series 8 - 9 + ( 8 1 ) / ( 8 ) - (

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