z=arctan(cos(y-x))

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z=arctan(cos(y-x))
How often does he do homework是什么意思 How do you usully 和 How does he 能造什么句? 有there be sb do sth这样的用法么书上出现了there was a car chase through the street...的句子,我很惊奇,总觉得应该是chasing.请问有这种there be sb do用法么?还是书打印错了? 英语语法问题7请写出判断依据 I'm not quiets sure about it ____he'll come____he 求英语选择解答!I'm not sure whether___ him about it.A.telling B.to tell C.told D.will tell还有……这题咋讲啊? catch it catch it和get it的区别 l must find it.的意思 关于英语语法7请写明过程 Maybe or not,but sometimes u come in mind... room to rent 的电影资源是拉珀特·格雷夫斯(Rupert Graves),在2000年的电影对蕾丝探长已经中毒,超级的想看到他的身姿啊,如果有中文自然最好,没有的话英文也好啊 Is there any room to rent?这句话有表达有错误吗? 有关于英语语法7 放纵,用什么词修饰好啊? 用几个词来形容一下早恋? 荒唐? We have not seen other for ages.怎么翻译 l have't ever seen writen note for ages.l'm have so many fear about pressing the key.maybe l want to forget and abandon something with the nasty .l felt pressure and need to study hard in future.some pretty thing wait to found out by l .now l can do 雅思作文:这是本人第二次写雅思作文,最好能给个合理的分数,topic:Some people believe that children should be allowed to stay at home and play until they are six or seven years old .Others believe that it is important for child use to 和used to的意思 be use to 和be used to do有区别吗? e--card音标 ,这里的e发什么音呢? MUA什么意思 雅思作文急需从6分提高的7分有没有考过写作7分的分享下经验 再描述一下7分是什么程度.如果能有一些细节就更好了 求雅思作文评分..这样的能打到7分吗?Some people insist the belief in which the popular saying 'Spare the rod,spoil the child.' conveys.Others think beating misbehaving kids with any kind of instrument is inhumane and cruel,and doing so w 雅思作文7分相当于托福作文多少分?如题,求指点! im sure you like it 为什么人和动物不能在一起 what i should send to Tears'are gonna fall,Rolling in the deep.神马意思? return to有到达的意思吗? Return to a head,I would be beyond redemptio的中文意思 填单词 please a _________my question loudly(大声的) Return to Heaven是什么意思