Hellow guys, Welcome to my website, and you are watching [20160930] 2016학년도 9월 평가원 수학(B형) 30번 해설. and this vIdeo is uploaded by 한성은 at 2017-04-14T04:49:29-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.