3條a-maths(微分)

2009-05-23 8:57 am
http://i303.photobucket.com/albums/nn156/syliva_meteor/001.jpg
19(a)我計到,但係b)唔識,我唔明佢話每秒2弧度即係點
可否詳細解釋,最好附圖,唔該,請幫下我

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收錄日期: 2021-04-23 20:38:25
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