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10.試求點 到直線 的距離(A) (B) (C) (D) 。
問題詳情
10.試求點
到直線
的距離
(A)
(B)
(C)
(D)
。
參考答案
答案:A
難度:
計算中
-1
書單:
沒有書單,新增
用户評論
【用戶】
li
【年級】大一下
【評論內容】距離公式 係數平方開根號當分母 , 所以是[32+(-4)2]開根號=5點代入掛絕對值 , 所以是 [3*1-4*2+1]絕對值=4答案4/5
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