問題詳情
17.直角三角形ABC中，若斜邊長為3 √5，且兩股長恰為 
的兩整數根，試求k值為何？
(A)－11
(B)─9
(C) 11
(D) 9。
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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