IB MAI HL Number and Algebra Topic 1.2 Sequences & Series (id: e998d857e)

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 sequencebrf:xw5wpxxr8i 1ug7c h 0 81f*- ffnz hjt lu s) o37o-yno.v7has u$_1$=12, u$_2$=21, $u_3$=30.
1.Find the common difference, d.
d=  .
2.Find $u_{10}$.
$u_{10}$=  .
3.Find $S_{10}$.
$S_{10}$=  .

参考答案:
空格1: 9  空格2: 93  空格3: 525 


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