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:2024/07/18 14:36:27
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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