RE: (고등수학) 원의 방정식(2)

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(고등수학) 원의 방정식(2)

in highschool •  7 years ago 

이 공식 정말 오랜만에 보는데요... 그때도 어려웠지만 지금은 더 어렵네요 ㅠ 가끔씩 머리 식힐겸 보야곘습니다 ㅎㅎ 좋은 포스팅 감사합니다 :)

highschool
7 years ago by

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      ·  7 years ago 

    좋은 댓글에 저도 감사드립니다^^

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