|1/201-1/2000|+|1/2002-1/2001|-|1/2002-1/2000|
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:2024/07/30 21:40:47
|1/201-1/2000|+|1/2002-1/2001|-|1/2002-1/2000|
化繁为简
化繁为简
![|1/201-1/2000|+|1/2002-1/2001|-|1/2002-1/2000|](/uploads/image/z/2402567-71-7.jpg?t=%7C1%2F201-1%2F2000%7C%2B%7C1%2F2002-1%2F2001%7C-%7C1%2F2002-1%2F2000%7C)
相同分子的分数,分母越小,分数值越大.又正数和零的绝对值为其本身,负数的绝对值为其相反数.所以原式=-(1/2001-1/2000)-(1/2002-1/2001)+(1/2002-1/2000)=-1/2001+1/2000-1/2002+1/2001+1/2002-1/2000=0
|1/201-1/2000|+|1/2002-1/2001|-|1/2002-1/2000|
2002*2002*(1/2000*2001+1/2001*2002)
1999*1998/1+1999*2000/1+2000*2001/1+2001*2002/1+2002*2003/1+
1/1999×2000+1/2000×2001+1/2001×2002+1/2002×2003+1/2003×2004+
(1+1/1999+1/2000+1/2001)×(1/1999+1/2000+1/2001+1/2002)
|2001\1-2000\1|-|2001\1-2000\1|+|2002\1-2001\1|=
2003-2002+2001-2000+.+3-2+1
计算2000×2001×2002×2003+1
1+2+3+...+1999+2000+2001+2002
1+2+3.+1999+2000+2001+2002
2002*2001-2001*2000+2000*1999-.-3*2+2*1
1/2000*2001+1/2001*2002+1/2002*2003+...+1/2007*2008=?