mathโ™ช/์‚ผ๊ฐ๋ฒ•

t = tan(x/2)์˜ ๊ณต์‹

ํ˜„์ง€๐Ÿผ๐Ÿ’• 2020. 11. 15. 17:00
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t = tan(x/2)์˜ ๊ณต์‹