百度试题 结果1 题目Is this sequence arithmetic, geometric, shifted geometric, or something else? 相关知识点: 试题来源: 解析 something else 反馈 收藏
题目The sequence , , , , is an arithmetic progression. What is ?( ) A: B: C: D: E: 相关知识点: 试题来源: 解析 B N/A. 反馈 收藏
Since d1≠d2 , then this sequence is not arithmetic. I did the same thing for the common ratio and found r1≠r2. So this sequence is not geometric either. It is simply a sequence defined by the sigma notation ∑k=1n1nP.S. I found these topics in an Algebra book, but the topic...
In algebra, sequences of numbers are valuable for studying what happens as something keeps getting larger or smaller. An arithmetic sequence is defined by the common difference, which is the difference between one number and the next one in the sequence. For arithmetic sequences, this difference ...
an arithmetic sequence is a sequence of numbers, where the difference between one term and the next is a constant. for example, 1, 4, 7, 10, 13, 16, 19, 22, 25, … is an arithmetic sequence with common difference equal to 3. it is also termed arithmetic progression and is commonly...
百度试题 结果1 题目【题目】In an arithmetic sequence, what is the relationship between the second term + eighth term and the fourthterm+sinthterm? 相关知识点: 试题来源: 解析 【解析】a_2+a_8=a_4+a_6 反馈 收藏
解析 A。解析:设首项为 a1,公差为 d。由 a2 = a1+d = 8,a5 = a1+4d = 17。将第一个式子变形为 a1 = 8 - d,代入第二个式子可得 8 - d + 4d = 17,3d = 9,d = 3。选项 B,4 计算错误;选项 C,5 计算错误;选项 D,6 计算错误。
Learn more about this topic: Arithmetic Sequences | Definition, Formula & Examples from Chapter 9 / Lesson 7 49K Understand what an arithmetic sequence is and discover how to solve arithmetic sequence problems using the explicit and ...
Learn more about this topic: General Term of an Arithmetic Sequence | Overview, Formula & Uses from Chapter 21 / Lesson 5 59K Learn the definition of arithmetic sequence and general term of a sequence. Learn the formula for general term of a sequence and se...
If the terms of a sequence are t1, t2, t3, . . . , tn, what is the value of n ? (1) The sum of the n terms is 3,124. (2) The average (arithmetic mean) of the n terms is 4. 选项: A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. ...