4/3+16/15+36/35+64/63+100/99+144/143=?
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:2024/07/08 16:27:48
4/3+16/15+36/35+64/63+100/99+144/143=?
![4/3+16/15+36/35+64/63+100/99+144/143=?](/uploads/image/z/1305904-40-4.jpg?t=4%2F3%2B16%2F15%2B36%2F35%2B64%2F63%2B100%2F99%2B144%2F143%3D%3F)
原式=1+1/3+1+1/15+1+1/35+……+1+1/143
=6+1/2×(1-1/3+1/3-1/5+1/5-1/7+1/7-1/9+1/9-1/11+1/11-1/13)
=6+1/2×(1-1/13)
=6又6/13
=6+1/2×(1-1/3+1/3-1/5+1/5-1/7+1/7-1/9+1/9-1/11+1/11-1/13)
=6+1/2×(1-1/13)
=6又6/13
4/3+16/15+36/35+64/63+100/99+144/143=?
4/3+16/15+36/35+64/63+100/99+144/143+196/195+256/255
4/3+16/15+36/35+64/63+100/99+144/143+196/195+256/255=
4/3+16/15+36/35+64/63+100/99+144/143+196/195+256/255怎么计算
4/3+16/5+36/35+64/63+100/99+144/143
4/3+16/15+36/35+64/63+100/99
4/3+16/15+36/35+64/63+100/99怎么简算?
3分之4加十五分之十六加35分之36加63分之64加99分之100加143分之144
36/35+64/63+100/99=
有理数题,8/3*3+16/15*15+24/35*35+32/63*63+40/99*99+48/143*143=?
巧算:8/3/3+16/15/15+24/35/35+32/63/63+40/99/99+48/143/143
1/3-2/15+3/35-4/63+5/99-6/143=?