school
Macau Periodical Index (澳門期刊論文索引)
- Author
- Lei, Ka Man；Huang, Xuan Guan
- Title
- Using various methods to solve the equation of tangents to a circle
- Journal Name
- 教師雜誌
- Pub. Info
- 2021年10月, 第68期, 第49-55頁
- Link
- http://mirror1.dsedj.gov.mo/ebook/tmag/68/p49-55.pdf
- Abstract
- Paragraphy Headings： 1. Method 1-By discriminant 2. Method 2-By “Radius=distance from the centre to the tangent 3. Method 3-By radius is perpendicular to the tangent of the circle 4. Method 4-By the slope of the line joining radius and tangent line 5. Method 5-By Pythagorean theorem 6. Method 6-By vertical vectors 7. Method 7-By normal vector of equation of line