Rewrite the expression as an algebraic expression
1. cos [arctan(3x)]
2. sin [arctan(11x) - arcsin(11x)]
Thanks!
Trigonometry
2011-09-16 3:09 pm
回答 (1)
2011-09-16 6:09 pm
收錄日期: 2021-04-23 23:24:17
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https://hk.answers.yahoo.com/question/index?qid=20110916000051KK00129