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Mathematics
Problem
The value of
a
a
a
, so that the volume of parallelopiped formed by
i
^
+
a
j
^
+
k
^
\hat{i} + a\hat{j} + \hat{k}
i
^
+
a
j
^
+
k
^
,
j
^
+
a
k
^
\hat{j} + a\hat{k}
j
^
+
a
k
^
and
a
i
^
+
k
^
a\hat{i} + \hat{k}
a
i
^
+
k
^
become minimum, is a.
−
3
-3
−
3
b.
3
3
3
c.
1
/
3
1/\sqrt{3}
1/
3
d.
3
\sqrt{3}
3
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