Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
If
O
P
=
2
i
^
+
3
j
^
−
k
^
\mathbf{OP} = 2\hat{i} + 3\hat{j} - \hat{k}
OP
=
2
i
^
+
3
j
^
−
k
^
and
O
Q
=
3
i
^
−
4
j
^
+
2
k
^
\mathbf{OQ} = 3\hat{i} - 4\hat{j} + 2\hat{k}
OQ
=
3
i
^
−
4
j
^
+
2
k
^
, find the modulus and direction cosines of
P
Q
\mathbf{PQ}
PQ
.
Browse the problem library