中二數學題
2011-12-22 1:51 am
回答 (3)
2011-12-22 5:24 am
✔ 最佳答案
10² = y²+y² (Pyth.theorem)(畢氏定理)100 = 2y²
100÷2 =y²
50 =y²
＿
∴y=√50
參考: Me
2011-12-22 8:06 am
Y^2+Y^2=10^2
2Y^2=100
Y^2=50
Y=5開方2
2Y^2=100
Y^2=50
Y=5開方2
2011-12-22 3:20 am
Y^2 + Y^2 = 10^2
2Y^2 = 100
Y^2 = 50
Y = √50 (ABT 7.07107) cm
2Y^2 = 100
Y^2 = 50
Y = √50 (ABT 7.07107) cm
收錄日期: 2021-04-13 18:25:45
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111221000051KK00520