时间:2025-05-24 14:57
地点:澄城县
GOpay钱包安装流程
恭喜你!很高兴听到你取得了减肥方面的进展。保持健康的饮食习惯和适量的运动,你将继续看到进一步的改变和进步。继续加油!
建行南京分行将坚决扛起“走在前、做示范”的使命担当,为争当中国式现代化城市实践引领者、谱写“强富美高”新南京现代化建设新篇章提供金融保障。
23名客户受邀参加。
(1-1/2)+(1/2-1/3)+(1/3-1/4)+···+(1/2009-1/2010
To find the sum of the given series, we need to add all the terms together. (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + ... + (1/2009 - 1/2010) We can simplify each term by finding the common denominator. 1 - 1/2 = 2/2 - 1/2 = 1/2 1/2 - 1/3 = 3/6 - 2/6 = 1/6 1/3 - 1/4 = 4/12 - 3/12 = 1/12 We can observe that each term follows this pattern - the denominator of the second fraction becomes the denominator of the first fraction in the next term. So, the series can be written as: 1/2 + 1/6 + 1/12 + ... + 1/2009 To find the sum of this series, we need to find the common denominator of all the fractions. The common denominator of 2, 6, 12, ..., 2009 will be the least common multiple (LCM) of these numbers. Calculating the LCM of these numbers is a bit lengthy. Instead, we can find the LCM of 2, 3, 4, ..., 2010, and then divide by the LCM of 2, 3, 4, ..., 2009. LCM(2, 3, 4, ..., 2010) / LCM(2, 3, 4, ..., 2009) = 2010 / 2 = 1005 So, the common denominator is 1005. To add the fractions, we need to express them with the common denominator: 1/2 = (1/2) * (1005/1005) = 1005/2010 1/6 = (1/6) * (1005/1005) = 167.5/2010 1/12 = (1/12) * (1005/1005) = 83.75/2010 Now we can add: 1005/2010 + 167.5/2010 + 83.75/2010 + ... + 1/2009 We can observe that the denominators of the fractions form an arithmetic sequence, and the numerators follow the same pattern. Using the formula for the sum of an arithmetic sequence: Sum = (first term + last term) * number of terms / 2 In this case, the first term is 1005/2010, the last term is 1/2009, and the number of terms is 2010. Sum = (1005/2010 + 1/2009) * 2010/2 Sum = (1005/2010 + 1/2009) * 1005 Sum = (1005 * 2009 + 1 * 2010) / 2 Sum = (2019955 + 2010) / 2 Sum = 2021965 / 2 Sum = 1010982.5 Therefore, the sum of the given series is 1010982.5.
莱万已经年满35岁,正在经历他在巴萨的第二个赛季。
实地走访企业发放惠企政策大礼包,内容涵盖改革政策、办事指南、惠企政策服务等,充分运用股权质押、知识产权质押融资帮助中小企业解决融资困难。
(唐诗璐)
淘宝上的金币有什么用处?能当钱用吗?
淘宝上的金币是一种虚拟货币,可以用于在淘宝平台购买商品或进行打折优惠等活动。 金币不能直接当做现金使用,但可以用来支付部分或全部订单金额。淘宝金币的兑换比例为1金币兑换1元人民币。 另外,淘宝金币还可用于参加平台上的抽奖活动,或者在淘宝指定商家处抵扣一部分购物金额。使用金币可帮助用户享受更多优惠和福利。