Solve the following equations. (Give your answers correct to 2 decimal places.)
2e^(-2x) + 11e^(-x) -21=0
F.4 Maths
2010-05-06 5:50 am
回答 (1)
2010-05-06 5:58 am
✔ 最佳答案
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http://j.imagehost.org/0031/ScreenHunter_11_May_05_21_54.gif
2010-05-05 21:58:58 補充：
lne=1
收錄日期: 2021-04-23 20:43:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100505000051KK01586