Happy new year 2024
0:23
Ine : Kyoto beautiful secret place
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Shared 2 years ago
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0:33
japan local train : To Okayama station
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0:24
shinkansen 東日本
Shared 4 years ago
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5:03
sin^2(x)=(1-cos2x)/2 증명하기
Shared 5 years ago
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