沈阳二中招生

△ABC是等边三角形,点E是BC延长线上的点,BE的垂直平分线叫AC于点D,垂足是M,CE=CD,求证：AD=CD 如图,三角形abc是等边三角形,bd是中点,延长bc到e,使ce＝cd .求证 点d在线段be得垂直平分线上. 好难的美国数学题（D）The product of two of the four roots of the following quartic equation is 8 .Find the value of k.x四次方 - 256 * x的三次方 + kx的平方 - 494x - 2008=0k是多少? 急 要加工的面标加工符号还是加工出来的面标加工符号. 谁有好点的分组名称?要带有特殊符号的? 求纯数字的网名,要带符号的 1999~2013年的2月各有多少天? Help me translate this sentence ,please!Robinho's story is a journey made by only a few of the millions of people who play football in Brazil. please help to translate this sentence ,3ks i used to be much less responsible when i was a child .he is not crazy for money,so he is content wiht life 3ks for you help Please help translate this sentence to English女摄影师用了十年,行走在中国大地上,记录眼前不经意滑过的平凡瞬间.十年光影通过此次展览第一次呈现在了观众面前. Please help me to translate this sentence.Develop an equation for the objective function,indicating how each variable affects the profit maximization or cost minimization goal.Then develop an equation for each constraint,indicating how each variables 一套餐桌椅由一种桌子和6张椅子组成,桌子价格是椅子的8倍,总价是2100元,求桌子和椅子的单价是多少元? help me please translate this sentence thanks.In a diverse and rapidly changing region,we believe that understanding the details of the culture,values,and beliefs is critical.We offer the right insights,in order to deliver real and meaningful results 丶符号怎么打 我想知道这类似于坐标轴的东西是什么 急求类似丶的符号!不是现在搜狗什么常用的丶 是个好早前的符号,谁有帮忙发下急用! 特殊符号丶怎么打忍丶恶 中间的点怎么打的?直接打键盘是打不出的, 考研 特征向量与特征值问题?A是n阶矩阵 行列式|A|=2 若矩阵A+E不可逆 则矩阵A的伴随矩阵A*必有特征向量（ ）矩阵A+E不可逆 即|A+E|=0 亦即 |-E-A|=（-1）的n次方|E+A|=0故λ=-1必是矩阵A的特征值又因 一套餐桌椅有一张桌子和六把椅子组成,总价是2100元,桌子单价是一支单价的八妹 Please Translate this Sentence for Me…一个冗长的句子,一美国朋友在我坛子上说的：I unfortunately met the damn glitch and got stunk in the mission cutting the grass which drove me crazy and what's worse is I cannot eliminate ze gli 谁能告诉我这个符号哪里有 A circular table of diameter 2 m is placed in the corner of a room so that its edges touchtwo adjacent walls.Find the shortest distance from the corner of the room to the edgeof the table. f(x)=px*+2/3x+q是奇函数 且f(2)=3分之5,求实数pq的值、*号是2的意思 公司决定裁员,我们部门就要我一个你走,我是2013年8月29日正式上班,有签劳动合同,一般怎么搞?公司部门领导只是在3月1号口头通知了需要裁员,现在公司想让我自动离职,给我一个月准备时间, try to translate this sentence please.This innovation became known as an integrated circuit. Try to translate this sentence!这句话怎么翻译?我用来回复对方说我很受欢迎.请大家帮个忙最好让对方理解我的英文意思,所以希望大家能口语话.我知道你很会用词组,如果用了还是麻烦你把词组标 有关一元二次方程首项系数不相等的两个二次方程(a-1)x^2-(a^2+2)x+(a^2+2a)=0,及(b-1)x^2-(b^2+2)x+(b^2+2b)=0（a,b是自然数)有一个公共根,求(a的b次方+b的a次方)/(a的-b次方+b的-a次方的值.题都没错是这样的 三英战吕布1414 1818 1313是什么意思是边锋游戏中的游戏,这是他们的术语 . 1414什么意思sbsb 1414是什么意思2