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No Plagiarism!1qAs05dZADPfmIL5919Gposted on PENANA 我發現sin跟cos是一對互攻的小情侶8964 copyright protection146PENANA57J49gMSSz 維尼
如果他們躺著(0°)sin是0 cos是1 8964 copyright protection146PENANA5tTdTBNz0x 維尼
如果他們站著(90°)sin是1 cos是08964 copyright protection146PENANAQVU55vEzh8 維尼
216.73.216.8
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