题目内容
In the arithmetic sequence $${t}_{1}$$, $${t}_{2}$$, $${t}_{3}$$, ..., $${t}_{n}$$,..., $${t}_{1}$$ = 23 and $${t}_{n}$$ = $${t}_{n}$$ - 1 - 3 for each $$n > 1$$. What is the value of n when $${t}_{n}=-4$$ ?
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正确答案: C
- 题目解析
题目基本信息
- 所属科目:数学PS
- 题目来源1:PREP07 Test 1-108
- 正确率: 0%
- 难度: 难
