更新1:
x^2 + (x/4)^2 = 4^2 16x^2 + x^2 = 16 * 16 x^2 = 256/17 x = 3.88 我唔明= =條式點黎 講講步驟得唔得
x^2 + (x/4)^2 = 4^2 16x^2 + x^2 = 16 * 16 x^2 = 256/17 x = 3.88 我唔明= =條式點黎 講講步驟得唔得
收錄日期: 2021-04-21 22:19:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100618000051KK01542