IDENTITY 網站:
https://project-identity.hk
影片內容:
00:00 - 片頭
00:05 - 希羅公式及其證明 | Heron’s formula and its proof
06:59 - 例子 | example
Playlist:
HKDSE Maths | 三角學的平面應用 | Application of Trigonometry in 2-D Problems
https://www.youtube.com/playlist?list=PL1Pv0-rhcQx7tSI-DGPk1eWUFCYMf1lqM