2. If the 10th and 17th terms of an A.P. are 7 and -7 respectively, a. find the first term and common difference. b. write the first four terms. c. find the 21 term of the sequence. 相关知识点: 试题来源: 解析 a25;-2 b.25,23,21,19 c.-15e ...
To find the first term and the common difference of the given arithmetic progression (AP) 13,53,93,133,…, we can follow these steps: Step 1: Identify the First TermThe first term of the AP is the first number in the sequence. First Term (a)=13 Step 2: Calculate the Common Diff...
Find the seventh term of this sequence. The second term of an arithmetic sequence is 24 and the fifth term is 3. Find the first term and the common difference. In a sequence, the first term is 82 and the common difference is -21. Find the fourth term...
Hint:We can see that the given series in the problem follows an Arithmetic Progression (AP). We find the ${{n}^{th}}$ term of the series by using the first term and common difference of the given series. Once, we find the ${{n}^{th}}$ terms, we...
Find the sum of the first 20 terms of the arithmetic sequence where the first term is 3 and the common difference is 4. A. 780 B. 790 C. 800 D. 810 相关知识点: 试题来源: 解析 C。解析:使用等差数列求和公式 Sn = n(a1 + an)/2,先求出第 20 项为 79,再计算可得和为 800。
View Solution Find thenthterm of anA.P.Whose first term is200and common difference is7. View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium ...
10 (a) The first three terms of an arithmetic progression are x, 5x-4 and 8x+2. Find x and the common difference.[4](b) The first three terms of a geometric progression are y, 5y-4 and 8y+2.(i) Find the two possible values of y.[4](ii) For each of these values of y, ...
Question: Find the nth term and the indicated term of the arithmetic sequence {an} whose initial term, a, and common difference, d, , are given.a1=4;d=8an= ?; a14= ? A) an=4+8n;a14=108B) an=-4+8n;a14=44C) an=-4+...
They found her walking alone and depressed on the beach... 他们碰见她独自一人神色忧郁地走在海滩上。 柯林斯高阶英语词典 She returned to her east London home to find her back door forced open... 她回到在伦敦东区的住所时发现后门被撬开了。 柯林斯高阶英语词典 It's not the first time that yo...
不过题目是英文的,水平有限不太懂题目意思.1.factor the following completely:12a^5-18a^4-6a^3 (注,a^5=a的5次方) ———不用解答,2.simplify and state restrictions:式子比较复杂,就不写了.题目是首先让我化简,然后.我就看不懂了.3.大标题是find 小题目是the ternth ter