IB MAI HL Number and Algebra Topic 1.2 Sequences & Series (id: 1fb34678c)

本题目来源于试卷: IB MAI HL Number and Algebra Topic 1.2 Sequences & Series，类别为 IB数学

[填空题]
An arithmetic sequence2rcamp)xt9v.kpl/6kx az*s( has jkrmy)+jm6l v i1s -bz6do,l6 u$_1$=40,u$_2$=30,u$_3$=24

1.Find the common difference, d.
The common difference is d=-  .
2.Find u$_8$.
​Using the nth term formula u$_n$=-  .
3.Find S$_8$.
S$_8$=  .

参考答案:
空格1: 8  空格2: 16  空格3: 96 


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