Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
In a tetrahedron OABC, if
O
A
=
i
^
\mathbf{OA} = \hat{i}
OA
=
i
^
,
O
B
=
i
^
+
j
^
\mathbf{OB} = \hat{i} + \hat{j}
OB
=
i
^
+
j
^
, and
O
C
=
i
^
+
2
j
^
+
k
^
\mathbf{OC} = \hat{i} + 2\hat{j} + \hat{k}
OC
=
i
^
+
2
j
^
+
k
^
, and the shortest distance between edges OA and BC is
m
m
m
, then
2
m
\sqrt{2}m
2
m
is equal to what? (Where O is the origin)
Browse the problem library