好難的數學題...有人答嗎...~!
2011-06-03 6:49 am
prove that (sin^2x+sinxcosx-cotx)/(sin^2x-sinxcosx+cotx)=(1-cot^3x)/(cot^3x+1)
回答 (1)
2011-06-03 7:24 am
✔ 最佳答案
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參考: sioieng
收錄日期: 2021-05-03 20:24:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110602000051KK01115