並前往https://math.ymhs.tyc.edu.tw/chenjt99/ScrClass/1051/%E9%AB%98%E4%BA%8C/%E7%BF%92%E9%A1%8C/%E9%AB%98%E4%BA%8C%E4%B8%8A%E7%BF%92%E9%A1%8C3.4%E9%9D%A2%E7%A9%8D%E8%88%87%E4%BA%8C%E9%9A%8E%E8%A1%8C%E5%88%97%E5%BC%8F(%E7%BF%B0%E6%9E%97).pdf
