Hellow guys, Welcome to my website, and you are watching [수학사랑] 모래로 배우는 원뿔 곡선. and this vIdeo is uploaded by 수학사랑_MathLove at 2018-11-04T16:57:48-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
