Sequences & Series (id: 155d04976)

本题目来源于试卷: Sequences & Series，类别为 IB数学

[填空题]
The first three terms q0bi s;ih6vgikp ytm15*j6 f0m;;x9j 7r 0aazsohi ;mof a geometric sequence are $u_{1}=32$, $u_{2}=-16$,$ u_{3}=8$ .
1. Find the value of the common ratio, r .   
2. Find $u_{6}$ . =   
3. Find $S_{\infty}$ . =   

参考答案:
空格1: -1/2  空格2: -1  空格3: 64/3 


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