天一大联考 顶尖联盟 2023-2024学年高二秋季期中检测(11月)数学f试卷答案
21.(12分)已知正项数列{an}满足:a1=3,且an(a+1-1)=2(a-1)a+1,n∈N*.1)设么=a,一求数列a的通项公式:(2)设c,=a十是,求数列{c}的前n项和T,并确定最小正整数n,使an...
21.(12分)已知正项数列{an}满足:a1=3,且an(a+1-1)=2(a-1)a+1,n∈N*.1)设么=a,一求数列a的通项公式:(2)设c,=a十是,求数列{c}的前n项和T,并确定最小正整数n,使an...
Part 2 Discovering Useful Structures3.What would happen if I refuse the job offer?I.根据汉语提示写出单词的正确形式。What if I refuse the job offer?4.I...
表示为CH4+3C0,=4C0+2H,0,选项D正确:答案选C。14.【答案】A【解析)【分析】海绵铜加入硫酸和硝酸铵溶解得到的溶液主要是硫酸铜,硫酸铵等,加入亚硫酸铵还原硫...
分层突破训练答案精解精析12.35.A+B+C=m,.'.C=T-A-B,4sin 40cos a-cos(a+B)sin a=.tan C=tan(T-A-B)=-tan(A+B)==413sin40°始8.Dtan A+tan B因为0kac号gm,所以cma...
16-17AA16.What kind of job does the man do everyM:Don't worry.Let me check the bus guide onFriday evening?my phone.A.Helping with homework.W:Be quick,...
I just couldn't 50 these beliefs to Dixie.She第一节(满分15分)had never attacked people.But my 51 was what选做题一(用括号内所给词语的正确形式翻译句...
A(C,H,O)(CH).SO.BHIOH-H一定条件HCH,CIE(C,H)AICl,光照G (C,H,CI)已以下信息:OH(CH,)S0.①OH②A的苯环上有四种化学环境不同的氨原子,且取代基的位置相邻;③在D...
(上接A2、A3版中缝M:But I like tmy favoritesubWhieylike best?I have iton Tusday and Fri-day.M:I see.Would you like oUncle Wang's farm this after.noon?W...
Ⅲ皿.根据括号内的提示,翻译下列句子。学美在报社SELF-1.上周末,我碰巧在机场遇到了一位大学同学。(tso happened that ...EARNING ENGLISHLast weekend,it so h...
大一轮复习学案数学第二节空间点、直线、平面之间的位置关系☑答案见552页基础达标练6.多选题(2022吉林高三一模)给出下列命题,其中真1.下列命题正确的是命题有()...