1. 求值:arcsin ((5√273)/182) + arcsin ((3√273)/91)
2. 求值:arcsin ((23√403)/806) + arcsin ((17√403)/806)
3. 求值:arccos ((103√67)/938) + arccos ((95√67)/938)
收錄日期: 2021-04-13 18:49:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120714000051KK00526