如图1，已知;函数y=-0.5Xb图像与X轴，y轴分别交于A、B两点与函数y=x的图像交于M点，M

高等代数,线性变换定义线性变换A（X）=（a b c d）X,求A在E11,E12,E21,E22下的矩阵.为什么A(E11)=aE11+cE21,A(E12)=aE12+cE22,A(E21)=bE11+dE21,A(E22)=bE12+dE22 高等代数 可对角化线性变换的问题A是方阵,证明,若rank(A)+rank(A-E)=n,则A可对角化.A是方阵,证明,若rank(A+E)+rank(A-E)=n,则A可对角化 let's play football _____ school.(介词) 一、根据首字母完成下列单词.1.Can you play football after school?Yes,of c__________.一、根据首字母完成下列单词。1.Can you play football after school?Yes,of c__________.2.My sweater is red and green,what about y_________?3.Lo do you don't like it.either?可以这么说吗? Do you like it? 试求线性空间的一个线性变换,满足A（（1,-1,-3））=（1,0,-1）A（（2,1,1））=（2,-1,1）A（（1,0,-1））=（1,0,-1） V上的所有线性变换构成线性空间 那这个线性空间是在什么数域下的呢如题… 找错 september is the nineth month of a year 设α是n维线性空间 V的线性变换,那么 α是双射 α是单位变换（×） Can you tell me why you like it here so much?句子里面的it指的是什么?这句子里讲的是什么语法? 看答句写问句 1.Mike has a birthday in november 2.My aunt is answering the phone. 首字母 Shanghai is a big city now,It is o___ of the biggest cities in the word 形式单词 shop come China play see rice for,come,our,to,store,see,and,yourslf来连词成句 It's（ ） coat.Here.you.are.It's（ ） coat.Here.you.are.A.your.B. the boy ( 0 is lying under the tree is my brother The boy is Nancy's brother .The boy is under the tree.（改为复合句）The boy（ ）（ ）under the tree is Nancy’s brother. 填诗句的题：（ ）,强中更有强中手.网上有人说是：一山更比一山高我觉得是山外青山楼外楼,哪个更好?急,明天要 (一山更比一山高)比喻什么数字? 你还记得这些表示谁的词吗?试用our,your,his,her,their填空( 越快越好 ）ken and___sister ann aways help___father with the housework on sundays."Did you clean_____mother 's car,children?" "No,we didn't." she went our in _____car this Just do it as you like!Keep moving Here we go:D Life is like riding a bicycle. To keep your balance you must keep moving中文意思 we should keep quiet here 同义句 we should keep ____ here 关于【强中自有强中手,一山更比一山高寓意】的小故事关于人要谦虚不骄傲的故事,适合在公司开会讲.不要太长.以为给成年人讲.最好有些深度 为什么说目前中国的机遇大于挑战? 一山更比一山高,强中自有强中手.商朝封王风中走,成吉思汗射大雕.--打一动物?36种动物中的一种 请摸摸你的鼻子 英语翻译1.未能事人,焉能事鬼2.未知生,焉知死3.君子坦荡荡,小人常戚戚3.文质彬彬然后君子4.人法地,地法天,天发道,道法自然5.无为,无不为 Now I'm standing in the cold,I know that it's such a long way down,but I'm trying not to fall. 怎么让英语口语学的更好? 女生英文名Ellie、Jolie 哪一个好?