the x-axis.OP = 2.5cm, OS = 6cm and RS = 8cm. If OQ is the terminal side of θ,
find sinθ.
Hint:1. The reference angle is in the quadrant Ⅳ.
2.∠RSO is a right angle.
3.∠RQP is also a right angle.
更新1:
唔該大家幫手諗下
唔該大家幫手諗下
收錄日期: 2021-04-18 20:15:24
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https://hk.answers.yahoo.com/question/index?qid=20070201000051KK02460