證明 L.H.S = R.H.S
sinθ / ( cscθ + cotθ ) = 1 + sinθ
maths題 help plx
2011-01-16 11:04 pm
回答 (1)
2011-01-16 11:14 pm
✔ 最佳答案
As follows:圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_03Jan161513.gif
2011-01-16 15:15:09 補充：
! think your question is wrong.
收錄日期: 2021-04-22 00:54:16
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110116000051KK00567