1/6+1/12+1/20+1/30+.+1/2009*2010=?
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/09 16:02:37
1/6+1/12+1/20+1/30+.+1/2009*2010=?
![1/6+1/12+1/20+1/30+.+1/2009*2010=?](/uploads/image/z/3831188-68-8.jpg?t=1%2F6%2B1%2F12%2B1%2F20%2B1%2F30%2B.%2B1%2F2009%2A2010%3D%3F)
1/6+1/12+1/20+1/30+.+1/2009*2010
=1/(2*3)+1/(3*4)+1/(4*5)+.+1/(2009*2010)
=(1/2-1/3)+(1/3-1/4)+.+(1/2009-1/2010)
后面的就不用说了吧.
=1/(2*3)+1/(3*4)+1/(4*5)+.+1/(2009*2010)
=(1/2-1/3)+(1/3-1/4)+.+(1/2009-1/2010)
后面的就不用说了吧.
1/6+1/12+1/20+1/30+.+1/2009*2010=?
计算:1/6+1/12+1/20+1/30……+1/2009*2010 简便计算
1/6+1/12+1/20+1/30+···+1/2009*2010(完整的 嘻)
简便计算 1/6+1/12+1/20+1/30+……1/2008*2009
1/2+1/6+1/10+1/12+1/20+1/30+1/42+.+1/2008*2009
1/2+1/6+1/12+1/20+1/30+1/42= 2+4+6+...+2010= (5/9-5/6+1/4)÷(
1/2+1/6+1/12+1\20+1/30+1/42+.+1/9900=?
1/2+1/6+1/12+1/20+1/30+1/42+1/56=?
2/1+6/1+12/1+20/1+30/1+42/1+56/1=
2/1+6/1+12/1+20/1+30/1+42/1+56/1=?
1/2+1/6+1/12+1/20+1/30+1/42+1/56=
1+1/2+1/6+1/12+1/20+1/30+1/42=?