(1*1+2*2)/(1*2)+(2*2+3*3)/(2*3)+(3*3+4*4)/(3*4)+.+(2005*2005+2006*2006)/(2005*2006)=?要计算结果.不要直接给答案.(2000+20002000+200020002000+2000200020002000)/(2001+20012001+200120012001+2001200120012001)=?要计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 14:01:34
![(1*1+2*2)/(1*2)+(2*2+3*3)/(2*3)+(3*3+4*4)/(3*4)+.+(2005*2005+2006*2006)/(2005*2006)=?要计算结果.不要直接给答案.(2000+20002000+200020002000+2000200020002000)/(2001+20012001+200120012001+2001200120012001)=?要计算](/uploads/image/z/5195409-33-9.jpg?t=%281%2A1%2B2%2A2%EF%BC%89%2F%EF%BC%881%2A2%29%2B%282%2A2%2B3%2A3%EF%BC%89%2F%EF%BC%882%2A3%29%2B%283%2A3%2B4%2A4%EF%BC%89%2F%EF%BC%883%2A4%29%2B.%2B%282005%2A2005%2B2006%2A2006%29%2F%EF%BC%882005%2A2006%EF%BC%89%3D%3F%E8%A6%81%E8%AE%A1%E7%AE%97%E7%BB%93%E6%9E%9C.%E4%B8%8D%E8%A6%81%E7%9B%B4%E6%8E%A5%E7%BB%99%E7%AD%94%E6%A1%88.%EF%BC%882000%2B20002000%2B200020002000%2B2000200020002000%EF%BC%89%2F%EF%BC%882001%2B20012001%2B200120012001%2B2001200120012001%EF%BC%89%3D%3F%E8%A6%81%E8%AE%A1%E7%AE%97)
(1*1+2*2)/(1*2)+(2*2+3*3)/(2*3)+(3*3+4*4)/(3*4)+.+(2005*2005+2006*2006)/(2005*2006)=?要计算结果.不要直接给答案.(2000+20002000+200020002000+2000200020002000)/(2001+20012001+200120012001+2001200120012001)=?要计算
(1*1+2*2)/(1*2)+(2*2+3*3)/(2*3)+(3*3+4*4)/(3*4)+.+(2005*2005+2006*2006)/(2005*2006)=?
要计算结果.不要直接给答案.
(2000+20002000+200020002000+2000200020002000)/(2001+20012001+200120012001+2001200120012001)=?
要计算结果.不要直接给答案.
1/(3*1)+1/(2*4)+1/(3*5)+.+1/(2000+1998)=?
要计算结果.不要直接给答案.
答的好再加100分!
最后一题是1/(3*1)+1/(2*4)+1/(3*5)+......+1/(2000*1998)=?
打错了
(1*1+2*2)/(1*2)+(2*2+3*3)/(2*3)+(3*3+4*4)/(3*4)+.+(2005*2005+2006*2006)/(2005*2006)=?要计算结果.不要直接给答案.(2000+20002000+200020002000+2000200020002000)/(2001+20012001+200120012001+2001200120012001)=?要计算
一会儿就把答案告诉你~
原式=1/2+2+2/3+3/2+3/4+4/3+…+2005+2005/2006
=2*2004+2+2005/2006
=4010+2005/2006
这题比较简单~
原式=2000*(1+10001+100010001+1000100010001)/2001*(1+10001+100010001+1000100010001)
=2000/2001
这题提取一下就行了.
第三题我倒是算出来了,不过我上了两个月的初中,还没见过这么大得数,所以可能算错了,我的:5993001/7999000
如果对你有些帮助,那我感到欣慰,那我感到遗憾,不过,交个朋友也是好的吗!你上几年级了?是初一么?多给点分吧!
=1/2+2+2/3+3/2+3/4+4/3+…+2005+2005/2006
=2*2004+2+2005/2006
=4010+2005/2006
=2000*(1+10001+100010001+1000100010001)/2001*(1+10001+100010001+1000100010001)
=2000/2001
裂项
543534534w534