[計量] 請教10/28印度JJ

看板GRE (GRE入學考試)作者 (ice)時間16年前 (2009/11/01 07:28), 編輯推噓0(002)
留言2則, 2人參與, 最新討論串1/2 (看更多)
http://www.drrajusgre.com/forum/viewtopic.php?t=7228 1.Given that three sides of the rectangle RS, ST, and TW as the tangent to the two circles whose centers are 'A' and 'B'.If 'C' is the circumfrance of each circle, then what is the area of the rectangle RSTW? (詳細圖形麻煩參考網站 我不會畫圖 >"<) A. (1/2)*(C/n)^2 B. (3/4)*(C/n)^2 C. (1/4)*(C/n)^2 & so on...... 6. Col. [sqrt(28)/sqrt(112)]-[sqrt(7)/sqrt(112)] Col. 1/4 這題答案是C 但是我不清楚該怎樣算 麻煩板上各位高手幫忙 7. Last year, 1/4 of factory workers are architests. One year ago 60 workers newly joined in which 50 are atchitects and no one left the factory since last year and if now 1/3 of factory workers are atchitects then find the total number of workers? 這題也麻煩大家幫忙了 我想好久 算是不知該怎麼列 題目一開始說last year 後來又提到one year ago <---- 不就是last year 嗎 感覺他轉來轉去的 都被搞混了.... -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 128.211.251.59

11/01 07:57, , 1F
6.直接化簡後相減 根號7約掉 =1/4
11/01 07:57, 1F

11/01 08:05, , 2F
天啊 又是可恨的計算錯誤 (考前焦慮ing)
11/01 08:05, 2F
文章代碼(AID): #1AxCWxqv (GRE)
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文章代碼(AID): #1AxCWxqv (GRE)