一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索

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一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索(共10篇)

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（一）：

1、 1/1*2 +1/2*3*1/3*4+...+1/99*100 2、1/2*3+1/3*5+1/5*7+...1/99*100
请用裂式相消法计算,请大家不要看错题,乘法的那些代表的是分母
第二题打错了，应该是2、1/2*3+1/3*5+1/5*7+...1/99*101

1、原式=1-1/2+1/2-1/3+1/3-1/4+...+1/99-1/100
=1-1/100
=99/100
2、原式=1/2-1/3+1/2*（1/3-1/5+1/5-1/7+.+1/97-1/99+1/99-1/101）
=1/2-1/3+1/2*（1/3-1/101）
=1/3-1/202
=199/606

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（二）：

1.（-8008）（1/2002-1）（1/2001-1）（1/2000-1）……（1/1002-1）（1/1001-1）=
2.一列数a1,a2 ,a3……,an
若a1=100+（-6）*1
a2=100+（-6）*2
a3=100+（-6）*3
……
则an=?
当an=2002是,n=?【一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索】

1.原式=(-8008)(-2001/2002)(-2000/2001)(-1999/2000)……(-1001/1002)(-1000/1001)
1000到2001总共有2001-1000+1=1002项再加第一项原式中总共有1003项,所以最后结果为负
原式=-8008*(1000/2002)=-4000
2.an=100+(-6)*n
an=2002时,2002=100+(-6)*n
所以n=-317
你题没错吧?

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（三）：

有些大专英语作业阅读理解需要解答,全答对给100
2.
Down the entrance hall of the school walk four eighth-grade students.Each
one is carrying a small basket with a single egg inside.Soon more students join
them-each one of them is also carrying a basket with an egg.The eggs in a
basket are part of a new school program that helps young people understand that
having a baby is a great duty.
At the beginning of the program,the teacher puts the students in pairs-one
girl and one boy.Each pair gets an egg,which they must take care of for two
weeks.For those fourteen days,the students have to take care of the eggs as
though they were real babies.Students whose eggs get broken have to start the
two weeks all over again with a new egg.
One person in each pair must have the egg with him or her at all
times-twenty-four hours a day.At no time can they let the egg be out of sight.
“If a teacher catches you without your egg,” said one student,“she makes you go
get it.They are really strict.” The teachers also make the students spend half
an hour each day sitting with the egg and just watching it.That can get pretty
boring.But it’s also something that parents spend a lot of time doing.
Children say that the program has helped them understand the
duties involved in having a child.“It was really hard,” said one student,“You
had to think all the time about the egg.”
1).The purpose of the program is to help students grasp the idea of ______.A.carrying a basket with an egg B.bringing up a baby C.laying eggs D.studying hard at school
2).At the beginning,______.A.only one student joined the program B.four students in all were interested in the program C.eight students became members of the program D.more students than teachers liked the program
3).In the third line of Paragraph 2,“they” refers to ______.A.teachers B.students C.eggs D.programs
4).Why should the students in the program spend half an hour each day sitting with an egg and just watching it?A.Because it is very boring to have the egg with them at all times.B.Because the teachers in this program are very strict.C.Because only in this way can students understand parents in taking care of children.D.Because if students do not do it,they will fail in the examination.
5).From the last paragraph,we can infer that ______.A.a program is the only way to educate children B.one has to think about a program all the time C.only one child grasps the purpose of the program D.the program is of help to children’s understanding of parents【一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索】

1)B
2)B
3)可能格式有变,第三行没有they
如果是本段第一个they 则选B；第二个则选C
4）C
5）D

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（四）：

22+42+62+82+.+1002（写出过程）=

根据1²=1/6*1*2*3=1；1²+2²=1/6*2*3*5；..;1²+2²+...+n²=1/6*n*(n+1）*（2n+1）所求式=2²（1²+2²+...+n²) =2²*1/6*n*(n+1）*（2n+1） =4/6*50*51*101 =17*100*101(计算出结果即可）

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（五）：

|1001/1-1000/1|+|1002/1-1001/1|=
|1001/1-1000/1|+|1002/1-1001/1|

|1001/1-1000/1|+|1002/1-1001/1|
=1000/1-1001/1+1001/1-1002/1
=1000/1-1002/1
=1002000/2
=501000/1
ssssssssssssssssssssssssssssssssssssssssss
ssssssssssssssssssssssssssssssssssssssssssssss
ssssssssssssssssssssssssssssssssssssssssss

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（六）：

简算
1．5+10+15+20+25+...+85+90+95+100
2.（1+3+5+7+...+1991）-（2+4+6+8+...+1990）
3.125*27+54*125-125
4.（104*112*198）除（224*52*198）
应用题
父亲今年比儿子大30岁,三年后,父亲的年龄是儿子的4倍,儿子今年多少岁?
5.（104*112*198）除（224*52*198）

1、5+10+15+20+25+...+85+90+95+100
= 5*（1+2+3+……+20）=1050
2.（1+3+5+7+...+1991）-（2+4+6+8+...+1990）
=（1-0） +（3-2） +（5-4） +…… +（1991-1990）
= 996
3.125*27+54*125-125
=125*(27+54-1)
=12500
4.（104*112*198）/（224*52*198）
= （112/224）*（104/52）*(198/198)
= 1
5.父亲今年比儿子大30岁,三年后,父亲的年龄是儿子的4倍,儿子今年多少岁?
30/(4-1)=10 (3年后的儿子年龄)
10-3=7

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（七）：

说有这样一道数学题：一本书撕去一页之后余下页码数之和正好是1002,问这本书共有几页?撕去的是哪一页?

按照等差数列之和的规律,假设我们没有撕掉任何一页,那么由等差数列公式
N(A1+AN)/2=1002 ,可得出,此书最少的页数为45页,如果小于这个数那么页数之和不可能大于1002,如果是45页的所有页数和为:1035
大家注意的是,书撕掉一页其实是撕掉了书上正反两页,那么撕掉的一页(两个数之和)为33,所以撕掉的那页为16页与17页那篇!
所以些书正好为:45页.

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（八）：

来解几道小六填空题!
1.小明做一道除法题时,误将被除数2001看成了1002,于是得到了一个错误的结果,其中商是43,余数为13,则正确的余数应该是（）.
2.幼儿园准备了很多梨和苹果,苹果的总数是梨的4倍,每个小朋友分得9个苹果和2个梨后,还剩下2个苹果和4个梨,那么原来一共有（）个梨.
3.某地区因为环境污染严重,一部分青蛙发生了变异,有些青蛙3条腿,有些青蛙5条腿,现在该地区捕捉了100只青蛙,总共有394条腿,其中5条腿的青蛙有2只,则4条腿的青蛙有（）只.

1、（1002-13）/43=23
2001/23=87
所以余数是0
2、设小朋友的数量是X个
9*X+2=4（2*X+4）
X=14
所以梨的数量2*14+4=32个
3、394-5*2=384
100-2=98
设4条腿的X只
3（98-X）+4X=384
X=90
所以4条腿的有90只

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（九）：

探索：
（2-1）（2+1）=2²-1
（2-1）（2²+2+1）=2³-1
（2-1）（2³+2²+2+1）=2⁴-1
（2-1）（2⁴+2³+2²+2+1）=2⁵-1
…
（1）试求2⁶+2⁵+2⁴+2³+2²+2+1的值；
（2）判断2²⁰⁰⁸+2²⁰⁰⁷+2²⁰⁰⁶+…+2²+2+1的值的个位数是几？

（1）∵（2-1）（2+1）=2²-1
（2-1）（2²+2+1）=2³-1
（2-1）（2³+2²+2+1）=2⁴-1
（2-1）（2⁴+2³+2²+2+1）=2⁵-1
…
∴2⁶+2⁵+2⁴+2³+2²+2+1=2⁷-1=127；

（2）∵2²=4，2³=8，2⁴=16，2⁵=32，2⁶=64，
∴每4个位数数字一循环，
∵2009÷4=502…1，
∴2²⁰⁰⁹尾数是2，
∵2²⁰⁰⁸+2²⁰⁰⁷+2²⁰⁰⁶+…+2²+2+1=2²⁰⁰⁹-1，
∴2²⁰⁰⁸+2²⁰⁰⁷+2²⁰⁰⁶+…+2²+2+1的值的个位数是1．

一出好戏彩蛋1002一出好戏彩蛋?-?搜狗搜索（十）：

|1∕1001－1∕1000|＋|1∕1002－1∕1001|－|1∕1002－1∕1000|,|为绝对值

|1∕1001－1∕1000|＋|1∕1002－1∕1001|－|1∕1002－1∕1000|
=1/1000-1/1001+1/1001-1/1002-1/1000+1/1002
=0
希望对您有帮助!
如有不明白,可以追问!
谢谢采纳!

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