positive integers is 1275. What is the sum of the last 50 of the first 200 positive integers( ). A. 6275B. 6600C. 8375D. 8775相关知识点: 试题来源: 解析 D (151+152+153+⋯+200) =(150+1+150+2+150+3+⋯+150+50) =50×150+(1+2+3+⋯+50) =7500+1275 =8775. 前200个...
+n 前n个正偶数的和为: 2+4+6+…+2n=2(1+2+3+…+n)=2S相关推荐 1If the sum of the first n positive integers is S,what is the sum of the first n positive even integers, in terms of S ?() A.5/2 B.S C.2S D.2S+2 E.4S 反馈 收藏 ...
更多“The sum of the first 50 positive integers is 1,275. What is the sum of the integers from 5”相关的问题 第1题 A.正确B.错误此题为判断题(对,错)。请帮忙给出正确答案和分析,谢谢! 点击查看答案 第2题 A.正确B.错误此题为判断题(对,错)。请帮忙给出正确答案和分析,谢谢! 点击查看...
The sum of the first k positive integers is equal to frack(k+1)2frack(k+1)2 . What is the sum of the integers from n to m, inclusive, where 0<n<m0<n<m ? 选项: A、 m(m+1)2−(n+1)(n+2)2m(m+1)2−(n+1)(n+2)2...
a近些年,越来越多的大学生找工作比较困难 The recent years, more and more many university students look for the work quite to be difficult[translate] athe sum of the first n positive integers is given by sum(n):if n=0 then return(0) else return (n+sum(n-1)) 总和测量第一个n正面整数的...
1What is the greatest commom divisor of positive integers m and n ?() (1)m is a prime number. (2)m and n are consecutive integers. A.条件(1)充分,但条件(2)不充分. B.条件(2)充分,但条件(1)不充分. C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. D.条件(1)...
1. for any positive integer n, the sum of the first n positive integers equals [n(n+1)]/2. what is the sum of all the even integers between 99 and 301?A 10,100B 20,200C 22,650D 40,200E 45,150 相关知识点: 试题来源: 解析 选择B解释:对任意整数n 前n项和是[n(n+1)]/2...
Data Sufficiency_If S is the sum of the first n positive integers, what is the value of n ? S < 20 S 2 > 220
回收铝; 玻璃; 塑料,纸,报纸,杂志; 电话簿和皱纸板。 [translate] aThen, use your result to find a formula for the sum of the first n positive integers. 然后,使用您的结果发现一个惯例为第一个n正面整数的总和。 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 ...
Reason: The sum of the first n natural numbers isn(n+1)2. View Solution prove that the product of three consecutive positive integers is divisible by 6. View Solution Find the sum of the pairs of integers : −6−4 View Solution ...