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No Plagiarism!rdblhSocR6DS1R5Y4CuRposted on PENANA 我發現sin跟cos是一對互攻的小情侶8964 copyright protection76PENANAyV3t0AVtxc 維尼
如果他們躺著(0°)sin是0 cos是1 8964 copyright protection76PENANAeMias0NWQz 維尼
如果他們站著(90°)sin是1 cos是08964 copyright protection76PENANA79nHUmHnK1 維尼
3.137.162.132
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