Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Find the angle between the vectors
r
⃗
1
=
(
3
i
^
−
2
j
^
+
k
^
)
\vec{r}_1 = (3\hat{i} - 2\hat{j} + \hat{k})
r
1
=
(
3
i
^
−
2
j
^
+
k
^
)
and
r
⃗
2
=
(
4
i
^
+
5
j
^
+
7
k
^
)
\vec{r}_2 = (4\hat{i} + 5\hat{j} + 7\hat{k})
r
2
=
(
4
i
^
+
5
j
^
+
7
k
^
)
.
Browse the problem library