关于实现目标的句子

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因式分解-16a^2-24ab-9b^2 (3)9A2-24AB+4B2 (4)-A2+8A-16那个可以用完全平方公式因式分解 因式分解:a^3 - 5a^2 b - 24ab^2 零点六四平方千米等于多少平方米 已知F1、F2分别是椭圆C:x^2/a^2+y^2/b^2=1(a>b>0)的左、右两个焦点,右焦点F2(c,0)到上顶点的距离为2,a^2 在y=ax的平方+bx+c中,若a+b+c=0,且当x=2时,y=3;当x=3时,y=28.求a,b,c的值,并求出当x=-2时,y的值是多少 谁能给我有关节日习俗的作文 There is going to be a music festival in our school next week.All the students are______ itA.looking for B.thanking for C.preparing for D.asking for the students in three____(年级)in our school will go on a trip next week The park is next to our school.同义句The park is___our school Two _______the students in our school will go to Beijing next week. A. hundreds of B. hundred of C.Two _______the students in our school will go to Beijing next week. A. hundreds of B. hundred of C. hundred D. hundreds该选哪一 已知tana,tana分之一是关于x的方程x平方-kx+k平方-3=0的两个实根,且0 已知0 英语翻译它们之间有什么区别?它们具体是怎么用的? We.didn't.talk.about.our.life.We.mainly.talked.about.our.work的翻译 Talk about the interviewer 翻译成汉语 lets talk about a man翻译成中文是什么意思 已知一元二次方程ax+bx+c=0的一个根位1,且a,b满足等式b=[√(a-2)+√(2-a)]-3,求方程1/4y-c=0 零点六四平方千米等于多少平方米 下列因式分解错误的是(  ) A.x2-y2=(x+y)(x-y) B.x2+6x+9=(x+3)2 C.x2+xy=x(x+y)如题 I want _____ (be)in our school sports club用所给单词的适当形式填空 i want to be in a club in our school同义句英语i think ______________________翻译:but I do not think i can be a successful sports man because I an not ai it 和 who is nancy ,can you guess? I want____ _____our school club.填两个单词,除了 to be do you want to sing then you can _____in our school music club A.be B.are C.to be D.is 尽快回复 I want to join our school Sports Cenrte的翻译 130.144的平方根=要正的 144怎么开方 已知椭圆C1:x^2/a^2+y^2/b^2=1(a>b>0)的离心率为根号3/3,直线l:y=x+2与原点为圆心,以椭圆c1的短半径为半径的圆相切1)求椭圆c1的方程 2)设椭圆c1的左焦点为f1,右焦点f2,直线l1过点f1且垂直于椭圆长 已知椭圆C1:x^2/a^2+y^2/b^2=1(a>b>0)的离心率为根号3/3,直线l:y=x+2与以原点为圆心,以椭圆C为短半轴长以椭圆C的短半轴长为半径的圆相切. (1)求椭圆C的方程. (2)若AC,BD为椭圆C的两条相互垂 已知椭圆C1:x^2/a^2+y^2/b^2=1(a>b>0)的离心率为根号3/3,直线l:y=x-2与以原点为...已知椭圆C1:x^2/a^2+y^2/b^2=1(a>b>0)的离心率为根号3/3,直线l:y=x-2与以原点为圆心,以椭圆C1为短半轴已知椭圆C1:x^2/a^2+y^2/b^ 已知sina×cosa=12/25,求做一个一元二次方程,使两根分别为sina和cosa. 已知sina+cosa=3/5,则以sina、cosa为两根的一元二次方程可以是?