[計量] BB TEST21

看板GRE (GRE入學考試)作者 (K先生 KKK)時間17年前 (2008/10/11 17:32), 編輯推噓1(100)
留言1則, 1人參與, 最新討論串1/1
又是一題數學 麻煩大家了 Circles R, S, T, are in the ame plane have a common center, and have radii r, s, and r+s, respectively, where 0 < r < s. 14. The area of the region πs^2 whose boundary consists of circles R and T -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.139.174.240

10/11 17:57, , 1F
π(s+r)^2-πr^2=π(2rs+s^2)
10/11 17:57, 1F
文章代碼(AID): #18y7AYSh (GRE)
文章代碼(AID): #18y7AYSh (GRE)