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化简tan(-α+3/2π) 麻烦写下过程 麻烦高手化简(1+tanθ)/(1-tanθ) 英语翻译我的premier是英文版 ,7.0桌面词典安装到什么地方啊? premiere特效中文翻译说是汉化的 结果特效还是en郁闷 谁帮个忙 翻一下 不要什么汉化包.给我贴图也行.谢谢了 英语翻译全文是The trip to that city was eye-opening for everyone,and near its end ,all the young people in our group began to reflect on what it had meant.We looked back on the first night we had arrived.We had all gone into the markets of the 求翻译,关于premier cs5新功能Industry-leading performance with the new Mercury Playback Engine newWork dramatically faster thanks to the revolutionary native 64-bit, GPU-accelerated Mercury Playback Engine. Open projects faster, scrub through （a-b+c）.(a-b-c)利用平方差公式计算. 平方差公式计算(a-b+c)(a+b-c)必须先适当变形,下列变形中正确的是A.[(a+c)-b][(a-c)+b] B.[(a-b)+c][(a+b)-c] C.[(b+c)-a][(b-c)+a] D.[a-(b-c)][a+(b-c)] （a-b）*（b-a）和（a-b-c）*（-a+b+c）那个能用平方差公式计算. 用平方差公式计算,应将（a+b-c）（a-b+c）变形为〔a 〕〔a用平方差公式计算,应将（a+b-c）（a-b+c）变形为〔a 〕〔a 〕 state－of－the－art 翻译? it is a synthesis of the existing literature and current state of the art.求翻译! 分解因式：4(x+2y)平方-9(x-y)平方 State-of-the-art.这句怎么翻译合适?是一篇文章的标题.State-of-the-art permeability determination from well logs to predict drainage capillary water saturation in classic rocks. 分解因式;4(x+2y)的平方-9(x-y)的平方 4(-y)的平方-(2y+x)(-x+2y)计算. tan(a-7π/2) 如何化简 tan(π/2-a）/tan（π/2+a）的值怎么化简? 化简 tan(a+π/2)=tan(a-π/2)=tan(π/2-a)=化简 就像sin(a+π)=-sina 化简（1+tan^2α)cos^2α= 简单数学题.急!速度 追加分已知多项式2x的2次方+my-12与多项式nx的2次饭-3y+6的和中不含x,y,求m+n的值 已知A=2x的2次方+3xy- 2x-1,B=-x的二次方+xy-1,且3A+6B的值与x无关,求y的值 3x+11=86 请编写一道有实际意义的应用题, -9+12÷(-6)-(-4)×(-4)÷(-8) premier collection怎么翻译成中文好? look after the collection翻译 英语翻译 英语翻译the state of the art for training in many other high-skill professions is virtual reality.一楼一看就是在线翻译来翻。太不准了，别拿在线翻译来翻。 英语翻译我需要的是全文翻译 1.In some countries,___ are called “public schools” are not owned by the state.A.that B.which C.as D.what2.____is known that the play ends up withHamlet's murder.为什么填As而不是It3.Although we had been out of touch for ten years,I recogni In some countries,____are called "public schools" are not owned by the state.A that B which C as D what求解释 属于怎样的语法结构 几道数学题请速度解答追加分少不了1.李叔叔打论文,3小时录入了3分之1.照这样的速度,李叔叔工作8小时,可以录入这篇论文的几分之几?还剩几分之几没完成?2.一共有240kg水果糖,每袋装4分之1.