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The article focuses on the debt package launched by ABN Amro and Citigroup to support Saudi Oger's purchase of a stake in T眉rk Telekom. The $2.075 billion two year deal is composed of a letter of guarantee facility and a funding facility. It cites the three tickets offered to lenders ...
证明:⎛ ⎜ ⎝⎞⎟⎠a-b⎛ ⎜ ⎜ ⎝⎞⎟⎟⎠an-1+an-2b+⋯+abn-2+bn-1=(an+an-1b+⋯+a2bn-2+abn-1)-(an-1b+an-2b2+⋯+abn-1+bn) =an-bn, 所以等式an-bn=⎛ ⎜ ⎝⎞⎟⎠a-b⎛ ⎜ ⎜ ⎝⎞⎟⎟⎠an-1+an-2b+⋯+abn-2+bn...
计算(n是正整数): anb-[2an+(abn-2bn)]-2(bn-an) 试题答案 在线课程 答案: 解析: anb-abn 练习册系列答案 课课练与单元测试系列答案 世纪金榜小博士单元期末一卷通系列答案 单元测试AB卷台海出版社系列答案 黄冈新思维培优考王单元加期末卷系列答案 ...
(abn)(a2bn-1)…(an-1b2)(anb)=a^(1+2+...+n)b^(1+2+..+n)=a^mb^m=(ab)^m，其中a^m表示a的m次方
A. 等差数列且公差为5 B. 等差数列且公差为6 C. 等差数列且公差为8 D. 等差数列且公差为9 相关知识点: 试题来源: 解析 B 解析:依题意有abn=a1+(bn-1)×2=2bn+a1-2=2b1+2(n-1)×3+a1-2=6n+a1+2b1-8,故abn+1-abn=6,即数列{abn}是等差数列且公差为6. 答案:B反馈 收藏 ...
如图.△ABC是一个边长为1的等边三角形.BB1是△ABC的高.B1B2是△ABB1的高.B2B3是△AB1B2的高.-.Bn-1Bn是△ABn-2Bn-1的高.则B4B5的长是 ,猜想Bn-1Bn的长是 .
答案:an-bn. 当n=2时,(a-b)(a+b)=a2-b2, 当n=3时,(a-b)(a2+ab+b2)=a3+a2b+ab2-a2b-ab2-b3=a3-b3, 当n=4时,(a-b)(a3+a2b+ab2+b3)=a4+a3b+a2b2+ab3-a3b-a2b2-ab3-b4=a4-b4, ……, 由上述分析可得:(a-b)(an-1+an-2b+…+abn-2+bn-1)=an-bn.结果...
故答案是an+1﹣bn+1. 点评:本题主要考查多项式乘以多项式的法则,注意指数的变化. 标签:anb2bna2bnabn 本试题来自[gg题库]本题链接:https://www.ggtiku.com/wtk/113272/1165835.html
解:(1)当n=2时,(a-b)(a+b)=a2-b2, 当n=3时,(a-b)(a2+ab+b2)=a3+a2b+ab2-a2b-ab2-b3=a3-b3, 当n=4时,(a-b)(a3+a2b+ab2+b3)=a4+a3b+a2b2+ab3-a3b-a2b2-ab3-b4=a4-b4, …, 由上述分析可得:(a-b)(an-1+an-2b+…+abn-2+bn-1)=an-bn. (2)29-28+27-…...