The Graphs of tan, cot, csc, sec - Oswego City School District Regents Exam Prep Center

Hint: When hand-drawing the graphs of sine and cosine, draw vertical dotted lines at intervals to remind you of the connection to the quadrants from the unit circle and to keep your graphs accurate. (Such dotted lines will resemble the dashed vertical gri...

搭捷運

晚上十一點多，看到這位姊姊與你一起搭捷運，不知道做何感想？...

大嬸的絕技，小朋友別亂學！ 稳稳低 . . . .

大嬸的絕技，小朋友別亂學！ 稳稳低 . . . ....

使用電腦需知

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你可以在敷衍一點沒關係!...