=1+(2-3-4+5)+(6-7-8+9)+(10-11-12+13)+...+(1998-1999-2000+2001)
=1;
4个一组,共(2001-1)/4=500组.每组的结果是0;
1+2-3-4+5+6-7-8+9+10-11-12+...+2001哪个大神会啊要具体算式,
1+2-3-4+5+6-7-8+9+10-11-12+...+2001哪个大神会啊要具体算式,
数学人气:304 ℃时间:2020-03-09 17:14:42
优质解答
我来回答
类似推荐
猜你喜欢
- 1看看吧,一道数学题,
- 2宾语从句中what where when 区别?
- 3I like spring. We can go outside and ____the nature.
- 4()do you like Spring Festival?a:what ,b:how,c:when,d:which
- 5I found I can keep a dog as a pet这句话对不对,如果不对,中间的can是不是改成could
- 6一个班男生人数是女生人数的8分之7,那么男女生各占全班人数几分之几?
- 7Thanks __________ your family photo.
- 8描写朋友离别时的段落(100字)
- 9工程队修一条公路,第一周修了全长的5分之2,第二周修了余下的百分之七十五,这时还剩3千米没修,这条路全
- 10write the comparative from of the following