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No Plagiarism!ppodjUJIb1xcJ03BvKe9posted on PENANA 我發現sin跟cos是一對互攻的小情侶8964 copyright protection117PENANAnDJkuGmERk 維尼
如果他們躺著(0°)sin是0 cos是1 8964 copyright protection117PENANAWdBbhlH5jK 維尼
如果他們站著(90°)sin是1 cos是08964 copyright protection117PENANApMAWMF8EII 維尼
216.73.216.24
ns216.73.216.24da2