Question 1
A vector in 100-dimensional Euclidean space R
100 makes equal acute angles with the positive directions of the 100 coordinate axes. Approximately what is that angle?
◦ 87.18°
◦ 75.44°
◦ 45.00°
◦ 68.71°
◦ 84.26°
Question 2
Given
u = i -
2
j +
k and
v = 3
i +
j -
2
k, find each of the following:
(a)
u x v, (b)
v x u, and (c)
v x v.