TVET CHNS,Eng,Maths
Senior High
求第二題半徑
以 1
(DC : 之+擊2一Gx+22+9=0
(2)C2: 忍+罰天+ 2y+570
4 尼 同
(G》C3: 2x2+272-一4性+4z,+7=0
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點的公式跟半徑公式一樣嗎