z开头的英语单词

化简下面代数式（x+y/x-y+4xy/y^2-x^2)/x^2-4y^2/x^2+3xy+2y^2并求出x,y满足2^2+3xy-5y^2=0时,代数式的值 当k=( )时,代数式x²-3kxy-3一y²+1/3xy-8中不含xy项怎么做 积分 sin^4xcos^2x dx利用三角学解以下积分(如图)Hints:sin^4xcos^2x = sin^2x(sinxcosx)^2 ∫dx/sin^2(2x-3)=? I will make the best use of every sqare minute.这里的 用函数极限的定义证明 两道高二数学曲线与方程的题目(详细过程)1、椭圆x^2/10+y^2=1,直线过椭圆右焦点F2交椭圆于A,B.△F1AB面积为3,求直线方程?2、化简：根号[(x-3)^2+y^2=1]-1=根号[(x+3)^2+y^2]-3第二打错了化简：根号[(x-3)^ 曲线与方程 (11 17:39:46)设动点P在直线x=1上,O为原点,以OP为直角边,点O为直角顶点作等腰Rt△OPQ,求点Q的轨迹方程. make full use of怎么用?every minute must be made full use of___our lessons,for the final examination is coming.A.going over B.to go over C.go over D.to going over像这道题选的是B,可是有个用法是make full use of doing,那什么时候用 已知函数f(x)=loga(a^x-1) (a>0,且a≠1) 求f(x)的定义域并讨论函数f(x)的增减性 高一的分式不等式 在线等..100x+1/50x+2大于等于2 怎么做 谢谢了题目是...（100x+1）/（50x+2）大于等于2 the supreme What is the House of Lords made up of? 翻译 In the UK they have the House of Commons and the House of Lords. court , food court , wear ,house wear 什么意思? 英语翻译Just as we outgrow a pair of trousers,we outgrow acquaintances,libraries,principles,etc.at times before they're worn out and at times-and this is worst of all-before we have new ones. 找范文how to make good use of college life?120字左右 George 已经表示,他不同意．的英文翻译是? Burt.Charlie.Elliot.George.Johnson.这些英文名字翻译成中文是什么 Of the three,who studies ______?A.harder B.hard C.hardest D.more hard为什么 在我们三个人中,她做的家务活最少.he _ _ _ _ of us three.(每条横在我们三个人中,她做的家务活最少.he _ _ _ _ of us three.(每条横线上填一个词) he has the --(much)money of us three --上填什么 三角函数阿尔法什么意思 √x²-6x-9 当x为何值 在实数范围内有意义 A Home Away From Home a home from home 意思是：象家里一样舒适的环境那个 a home away from home 又是如何解释呢?我从这个博客上找到答案啦，一个英式译法，一个是美式译法，A home away from home直译是‘ 请问"I am not so far away from home'怎么翻译 i am not so far away from home英文女声很好听貌似..什么题目? What am I in a world so far away from home 初中数学,求解答急最好有图 36初中数学求答案最好有图 任意角的三角函数是如何由锐角的三角函数定义给出的?不能用以后的诱导公式锐角毕竟有它的特殊性,它的坐标正好都是正的,如果学生一直按边的对应关系理解,我们就没办法简单地用类比一 求翻译 presidents designate as supreme court justices people who share theirpresidents designate as supreme court justices people who share their political views