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CLS_PJI 수업동영상
번호	제목	작성자	날짜	조회
3	3rd LS(210821) Trigonometry Identity (PDF 383)	Jp Park	2021-08-22	1
2	2nd LS(210818) Trigonometry Ratio and Angular, Linear Veloci..	Jp Park	2021-08-19	0
1	1st LS(210807) Trigonometry Function Graph	Jp Park	2021-08-08	1