數學方程式
2012-05-30 8:32 am
回答 (2)
2012-05-30 8:46 am
✔ 最佳答案
圖片參考：http://imgcld.yimg.com/8/n/HA00299181/o/701205300001313873409810.jpg
16(A²-0.01) = A²-0.0025
16A² - 0.16 = A²-0.0025
15A² = 0.1575
A² = 0.0105
A = 0.102
2012-05-30 9:19 am
It should be :
......
......
A² = 0.0105
A = ±√0.0105
......
......
A² = 0.0105
A = ±√0.0105
收錄日期: 2021-04-13 18:43:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120530000051KK00013