Question

chaud.12

求解，感謝(*¯︶¯*)
自己算一算覺得有點怪_(:3」∠ )_

o
值為
1 2 - 10 +1
((0,0,2)
> 類题19 空間中兩點4(4,5,1)與B(5,2,-1),C在z軸上移動,則AABC面積的最小
AB. A = 2-3+2=1
,此時C坐標為
AB (1, 1,-2)
* • ABC = 1 / J 68-127+156 +5+ 2z =
AC (-4,-3, 2-1)
Ex' - 10 x + (6||
SABI = 6
= b (
zz) -16]
= 6( z - 15 ) ² + 161-17
.6(3-5)+1566
- Z
=-4-3-2Z+2=-5-22
-
這題必考
| Ac/ ² = 2 = 22 +26 A A

Answer 1

✨ 最佳解答 ✨

膽固

你的ab 向量寫錯了是1-1-2