Hellow guys, Welcome to my website, and you are watching 도함수의 활용 – 함수의 그래프 (1) / 그래프 연습만 하면 극대극소, 증가감소 모두 해결할 수 있어요. and this vIdeo is uploaded by 혜기쌤의 자기주도수학 at 2020-11-15T22:10:17-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.