奔驰新s作业

一个非常有争议的数学题1=0.9（9的循环）证明是正确的：因为1/9=0.1（1的循环）所以1=0.9（9的循环）证明是错误的：因为1/9=0.1+0.1/9=0.11+0.01/9=……=0.1……1（+∞个1）+（10^（-∞））/9所以1=0.9 一道有争议的题目,已知a+b+c=0,求a(1/b+1/c)+b(1/c+1/a)+c(1/a+1/b)的值a(1/b+1/c)+b(1/a+1/c)+c(1/a+1/b)=(a/b+c/b)+(a/c+b/c)+(b/a+c/a)=(a+c)/b+(a+b)/c+(b+c)/a=(-b)/b+(-c)/c+(-a)/a=-1-1-1=-3.∵a＋b＋c＝0∴a＋b＝－c,a＋c＝－b,b＋c 社会学研究方法论可以对哪些社会问题进行研究 谁知道什么是模糊方法论和对应方法论?麻烦各路神仙详细告知并各举一个例子 重谢·~ 七年级上册英语教科书第90页的28个辅音怎么读?(用中文回答,音相近就行,拼音也行,简单的不用回答也行.)...七年级上册英语教科书第90页的28个辅音怎么读?(用中文回答,音相近就行,拼音也行, 如何获得内心的宁静 最好是关于《当下的力量》 在解某个一元二次方程时,甲因为看错常数项,解出两根为2和3,乙因为看错一次项系数,解出两根为－4和6． ①、请你求出原方程,并解此方程； 已知栓曲线x^2/a^2-y^2/b^2=1 的焦距10.p(2 1)在渐近线上C的方程A x^2/20-y^2/5=1\B x^2/5-y^2/20=1CD错误明显不给出都没明白我说的意思，这题我会做，想知道B怎么 英语28个辅音 是什么(快啊)只要分请辅音和浊辅音一定要准确就分两类 如何一直具备内在的宁静? 看看这句句子语法对吗?i do my homework begin 3o‘clock不对的话，正确的写出来 这句句子的语法对吗?急!可追加!Some snoe can make a snow man. 这句句子语法对吗?如果错了,那应该怎么写呢?中文意思：许多雪可以做一个雪人. 什么东西让人心灵变得宁静 奇迹的反义词 关于心灵宁静的素材 奇迹的反义词是? 翻译 When in Rome ,do as the Romans do. 传奇的反义词是什么 when he heard the news ,his voice----with excitement(tremble) I ____just____(finish) my homework用所给词的正确形式填空，1.I ____just____(finish) my homework2.___you____(find) your book yet?3.How many sheep ____you ___(get)？ Only one.4.i _____already _____(have) luch,now i'm full5.she ________（l miss the miss the plane 中文 We must hutty up,___we'll miss the plane.A.or B.and C.but D.so 辨析：真理是有用的,有用的就是真理 to,zgongshan,park,get,i,can,how,怎么造句 有用的就是真理,要用马哲的观点回答哦!要说出理由 “有用就是真理”的错误实质是A否定了真理的主观性B否定了真理的客观性C否定了真理的价值型D否定了真理的目的性请问下是那一个啊?还有原因这个是单选题 “I have had it with you,” Miss Swan shouted at the students.“Cool,” one student said.It took months to find a new teacher for that class.When they saw the short teacher,they thought she wouldn’t stay for long.Betty introduced herself.When s The students are excited.跟据答句写问句 Before the game started Alien's friends believed he was ___ but he didn't feel ___.A.sure to win; I'm very ( ) before the speech contest. the news was very exciting and everyone shouted with joy.句型转换the news was very exciting and everyone shouted with joy.It was_____ _____ _____ _____everyone shoutad with joy.