Mathematics
Senior High
Resolved
(1)(2)のみ解説お願いします。
練習 次の方程式は, どのような図形を表すか。
14
(1)x2+y2-2x-6y-6=0
4
(3) x2 +y2+4x+3=0
(4)x2+y^=8y
246
(2)x +y^ + 6x-8y-11 = 0
44
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