1.2tan0=11
2.tan20=11
3.2tan20=11
4.3sin0-1=1
5.2sin0+3=4
6.9sin0-2=6
7.cos0+1=1
8.sin20+2=2.5
所有0係sine符號既0中間加一橫線既0,需列式!
收錄日期: 2021-04-12 22:59:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061110000051KK03492