计算:2014²-2013²+2012²-2011²+·········4²-3²+2²-1²

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/30 23:51:41

计算:2014²-2013²+2012²-2011²+·········4²-3²+2²-1²
计算:2014²-2013²+2012²-2011²+·········4²-3²+2²-1²

计算:2014²-2013²+2012²-2011²+·········4²-3²+2²-1²
=(2014+2013)+(2012+2011)-----+(2+1)
=(2014+1)*2014/2
=2015*1007
=2029105