Blogtrottr Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決 Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決 MadesmithModern handmade. New designers every week. From our sponsors 求高中數學 Sep 7th 2013, 07:17 https://www.dropbox.com/s/ok9270kgh7focch/20130907_02.pngc = (5，-4)如圖，先依有的資訊大概的把圖畫下來。設C = (x, y)，因為重心是中線的交點，所以圖中的E點是AC的中點，座標如圖。同樣的D點是BC的中點，座標也可以計算出來。不過這兩個只需要列出一個就可以了。我是用E點來算，你可以練習用D點來再算一次。因為G點是重心，所以它會將BE切成2 : 1，如果上所寫。我們可以用B E及分點公式來列出G點的位置。所以等式列出來x y也就算出來了。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And SyriaMassacres That Matter - Part 2 - The Media Response On Egypt, Libya And SyriaNational demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK You are receiving this email because you subscribed to this feed at blogtrottr.com. If you...
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