대칭축, 초점, 포물선 상의 한 점이 주어졌을 때, 포물선의 준선 작도하기.(With a axis of symmetry and a focus and a point on a parabola, draw a directrix of the parabola.)

pdf	:	https://min7014.github.io/2020/2020041601.pdf
AlgeoMath	:	http://me2.do/FLSub5Xy
자료영상(YouTube)	:	https://youtu.be/DSrcOWL4mGk
강의영상(YouTube)	:	https://youtu.be/XLPwEQpCbRQ
Geogebra Tube	:	https://www.geogebra.org/m/af4zyxty
NFT	:	https://opensea.io/assets/klaytn/0x9faccd9f9661dddec3971c1ee146516127c34fc1/2921134233
고유번호	:	math20200416001
수정날짜	:	20220501
제작날짜	:	20150902
고유주소	:	https://min7014.github.io/math20200416001.html

알림 (Notice)