Question

Kuromi's note

求解，B座標如何求得

For 2 (1+2+1 = √6
9.右圖是一個邊長為6的正立方體,
#AD-AG, CF=CG, BH=2 BE,
則 cos(∠CAB)的值為
√²7K+(4 = √20tk
16
A(3,0₁6) B(0, p)
C(0,3,6)
6
2016k=10
3G 3C 3 F
E
B
(9019
H
36

Answer 1

K

答案是1/2？