畫圖易見
顯然圓x^2+y^2 = 17 和直線 3x+5y-m=0相切時,m正的那個值是最大值,負的那個值是最小值
本帖於 2023-02-28 20:28:07 時間, 由普通用戶 萬斤油 編輯
畫圖易見
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