sin(X-10)=-cos65
0<x<360
rationalize
圖片參考:http://imgcld.yimg.com/8/n/HA07925390/o/701203310051513873385750.jpg
收錄日期: 2021-05-03 20:20:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120331000051KK00515