並前往https://www.ltedu.com.tw/Web/Sharefile/EDM/109KL/vocational-high-school/math/02/%E9%AB%98%E4%BA%8C%E6%95%B8%E5%AD%B8A/%E6%95%B8A%E7%AC%AC%E5%9B%9B%E5%86%8A1-1%E8%AA%B2%E6%9C%ACpdf%E6%AA%94.pdf