Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Identify the unit vector among the following: a)
(
1
2
,
0
,
1
2
)
(\dfrac{1}{2},0,\dfrac{1}{2})
(
2
1
,
0
,
2
1
)
b)
(
1
2
,
3
2
,
0
)
(\dfrac{1}{2},\dfrac{\sqrt{3}}{2},0)
(
2
1
,
2
3
,
0
)
c)
(
2
3
,
0
,
1
3
)
(\dfrac{2}{3},0,\dfrac{1}{3})
(
3
2
,
0
,
3
1
)
d)
(
3
5
,
4
5
,
4
5
)
(\dfrac{3}{5},\dfrac{4}{5},\dfrac{4}{5})
(
5
3
,
5
4
,
5
4
)
Browse the problem library