hey real fast someone: suppose that sin(t)=-4/5 where t is in the third quadrant. Find tan(2t)?
回答 (1)
2016-04-20 4:25 pm
收錄日期: 2021-04-25 13:26:20
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160420081126AAbRsb5