MQ13 --- Trigonometry
2012-05-22 12:42 am
Difficulty: 35%If 2α,2β, 2γ are the values ofangles of a triangle and given that tanα - tan(β + γ) = √5, evaluate tan³α + tan³(β + γ).
回答 (1)
2012-05-22 1:01 am
✔ 最佳答案
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2012-05-21 17:05:24 補充：
Last 2 steps should be:
= (90 + 54)/8
= 18
參考: 原創答案
收錄日期: 2021-04-13 18:42:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120521000051KK00332