Article View: fj.education.math
Article #318ベクトル
From: 航
Date: Sat, 09 Jun 2001 08:32
Date: Sat, 09 Jun 2001 08:32
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1803 bytes
1.点A(1,2)と点B(-3,3)を通る直線のベクトル表示を求めよ 2.A(5,2)と点B(1,6)を結ぶ線分ABを1:3に内分する点と外分する 点を求めよ 3.次の一次方程式の定める直線のベクトル表示を求めよ (1)2x-y=3 (2)2x+3y=1 4.ベクトルa,bにちうて、次を示せ (1)|a-b|≦|a||b| (Schwartzの不等式) (2)|a+b|≦|a|+|b| 数学(線形代数)の教科書を目に穴が開くほど読んで 理解したつもりなんだけど 上の3つの問題がわかりません。 どなたか解き方教えてください お願いします
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X-Google-Language: Japanese,JIS X-Google-Thread: 1065a2,e64ed2a51baa204f,start X-Google-Attributes: gid1065a2,public X-Google-ArrivalTime: 2001-06-09 01:29:17 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!komachi.sp.cs.cmu.edu!news.ks-and-ks.ne.jp!feed1.dion.ne.jp!news0.dion.ne.jp!news1!not-for-mail Reply-To: "航" <twataru@f4.dion.ne.jp> From: "航" <twataru@f4.dion.ne.jp> Newsgroups: fj.education.math Subject: ベクトル Lines: 16 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-2022-jp" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Message-ID: <t7lU6.701$Uv1.25627@news1> Date: Sat, 9 Jun 2001 17:32:41 +0900 NNTP-Posting-Host: 210.196.28.71 X-Trace: news1 992075353 210.196.28.71 (Sat, 09 Jun 2001 17:29:13 JST) NNTP-Posting-Date: Sat, 09 Jun 2001 17:29:13 JST Organization: DDI Integrated Open Network