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(E) 設 O 為坐標平面上的原點，P 點坐標為(2, 1)；若 A、B 分別是正 x-軸及正 y-軸上的點，使得，則 ∆OAB 面積的最大可能值為 。(化成最簡分數)
問題詳情
(E) 設 O 為坐標平面上的原點，P 點坐標為(2, 1)；若 A、B 分別是正 x-軸及正 y-軸上的點，使得
，則 ∆OAB 面積的最大可能值為
。(化成最簡分數)
參考答案
上一篇 :
21.石墨烯是單原子層薄膜，許多市售商品宣稱含有石墨烯的成分，具有特殊的效能，下列有關石墨烯的敘述中，哪一項正確？(A)是電的絕緣體(B)不屬於奈米材料(C)鑽石的同素異形體(D)石墨烯中碳-碳原子間
下一篇 :
4.（ ）下圖電路中，使用的是NPN型電晶體，試問其電流流向標示，何者正確？ (A) (B) (C) (D)
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