电子邮件的英语怎么写

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在△ABC中,tanA+tanB+√3= √3tanAtanB,且sinBcosB=√3/4 ,则△ABC的形状为 已知tanA+tanB+√3=√3tanAtanB,且sinAsinB=√3/4,则△ABC的形状为? Jack loves___best.He often borrows books from the library. 4.The gerl often borrows books and m from the library.ane后面的“m”是开头字母 如果a是无理数则下列正确的是 A.2a是有理数 B.2+a是有理数 C.a的二次方是有理 数 D.a的三次方是有理数 Please read English a few times every morning.为什么time要加s 求一通讯格式的文章,班级里的好人好事RT.注意格式,不超过150字. He will go to the library____we often borrow books.A.that B.where C.for which D.which I read English every day.Mike_____every day,too I read English books (every day).对括号内提问 有一只怪钟,每昼夜设计成10小时,每小时100分钟,当这只怪钟显示5点时,实际是中午12点,当这只怪钟显示8点50分时,实际上是什么时间? 高一最简三角方程下列方程同解的是A:(1-cosx)/sinx=0与tanx/2=0B sinx/(1+cosx)=0 tanx/2=0C sinx=0 tanx/2=0D cos2x+1=0 (tanx平方-1)/(tanx平方+1)=1哪个是对的.我怎么觉得没一个是对的啊?D 的 第二个解集怎么求 1.2sin2x-sinxcosx-cosx2=12.7cosx+3cos2x=03.sin2x/cos2x=cos2x/sinx4.(1+sinx)/(1+cosx)=1/2不好意思,第一题写错了,应该2sin2x+-sinxcosx-cos2=1 一次函数 y=kx+b的图像与x轴交于点(—7,0),与y轴交于点(0,2),则这个函数的关系式是 一次函数y=kx+b的图像经过(0,-2)和(-3,7)两点,那么该函数的关系是? -You see,I am poor in maths,you are not good at English,and...-That's __we should help each otherA.whenB.whereC.howD.what Elena is good at english .I am poor at English.(用比较级改写句子) I _______(be) good at Maths,but Jim ____(be) good at English. 已知与双曲线x^/16-y^/9=1共焦点,且过点P(-根号5/2,-根号6),求双曲线的标准方程 已知与双曲线x^2/16-y^2/9=1公焦点的双曲线过点P(-根号5,-根号6),求该双曲线的标准方程无 分解因式:5x²-5xy+3y² 椭圆的5x²+3y²=15的长轴长是 一个两位数,个位数字是十位数字的两倍,十位数字为x,那么这个两位数是( ) A、3x B、12x C、21x D、21x+2可以写出思路或过程 英语am填空问题(关于am的英法)例:what's the matter.Tim?I am tired.am用于什么前面,什么后面,关于am的用法 in english .i am better at -----[read] than-------- [lishen]中怎么填,为什么 1.In english,i am _______(good)at reading than listening2.what_______(happen)if there is no water or air on earth3.i was having fun in the playground when i _________(hear)about the event4.he is always the last ______(leave )school5._ our english teacher suggested that we ()every day.talked,will talk,be talked to,talking;the author ()all of us are familiar will visit our company.为什么填的是with whom,这个作者不是被我们所知道的吗?不是应该用to whom的吗?求 l can speak English.改为一般疑问句 the teacher suggested that we visited the zoo改错 曲线Y=X²在点(3,27)处的切线方程是什么?给我讲一下,谢谢啦 若x^2-13x+1=0,则x^4 + 1/x^4 的个位数字是A.1 B.3 C.5 D.7 Tom often teaches h___ English