(1)If cos θ = 5/7, find the values of sinθ and tanθ by using Pythagoras theorem.
(2)How can I change √24 /7 to 2√6 /7?
(3)How can I change √24 /5 to 2√6 /5?
Please show the process.
收錄日期: 2021-04-13 16:40:35
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https://hk.answers.yahoo.com/question/index?qid=20090614000051KK00728