ashe has an incredible body. her general shape, from the hips up, really reminds me of Nicole Kidman c. 2000s and Whitney Houston c. late 80s-90s. meaning, she has the PERFECT body for a glitterly gorgeous gown such as this one. just super beautiful! thanks for posting, FC!! 正在翻...
(1)由题意知:an=n+ ,∴bn=2000( ) . (2)∵函数y=2000()x(0<a<10)递减, ∴对每个自然数n,有bn>bn+1>bn+2. 则以bn,bn+1,bn+2为边长能构成一个三角形的充要条件是bn+2+bn+1>bn, 即( )2+( )-1>0, 解得a<-5(1+ )或a>5( ...
解答:解:(Ⅰ)由于三角形为等腰三角形,所以点Pn(an,bn)在两点(n,0)与(n+1,0)连线的中垂线上,从而an=n+ 1 2,又因为点Pn(an,bn)在函数 y=2000 ( a 10)x(0<a<10)的图象上,所以bn=2000( a 10)n+ 1 2;(Ⅱ)∵函数 y=2000( a 10)x...
In the 2000s, cosmetic surgery has enjoyed an explosion in popularity, and medical advances have made possible reconstructive feats that were once only a dream of what might one 今天,现代技术继续扩展整容手术天际。 在最近50年期间,专业可观地增长。 在2000s,整容外科在大众化享受爆炸,并且医疗前进做...
论文-1:2000带状地形图航测成图方法与经验--以赫章河口水库工程输水管线为例 The Method and Experience of Aerial Survey of 12000 Topographic Map--Taking the Engineering Pipeline of Hezhang Hekou Reservoir as an Example 文档格式: .pdf 文档大小: ...
[题目]如图.在平面直角坐标系中.△A1B1C1.△A2B2C2.△A3B3C3.-.△AnBnCn均为等腰直角三角形.且∠C1=∠C2=∠C3=-=∠Cn=90°.点A1.A2.A3.-.An和点B1.B2.B3.-.Bn分别在正比例函数y=x和y=﹣x的图象上.且点A1.A2.A3.-.An的横坐标分别为1.2.3-n.线段A1B1.A2B2.A3B3.-.AnBn
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(1)an=(140n2−140n+1)A;bn=2(1−12n)A.(2)2019年会出现兼并局面. 结果一 题目 如图,甲、乙两家电器公司2000年的市场占有率均为A,根据市场分析和预测:甲公司从2000年(第1年)起市场占有率an与n的关系呈开口向上的抛物线形式(甲图),乙公司自2000年(第1年)起逐年的市场占有率都有所增加,并且年...
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1用本单元所学词汇的适当形式填空,完成短文 It is 1 (say) that an earthquake happened 2,000 years ago in China. The earthquake happened 2 (all of a sudden). 3 (without doubt), a lot of people died in this accident. At that time, a man named Zhang Heng decided 4 (invent) something...