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Mathematics
Problem
Find the direction cosines of the resultant of the vectors
(
i
^
+
j
^
+
k
^
)
(\hat{i} + \hat{j} + \hat{k})
(
i
^
+
j
^
+
k
^
)
,
(
−
i
^
+
j
^
+
k
^
)
(-\hat{i} + \hat{j} + \hat{k})
(
−
i
^
+
j
^
+
k
^
)
,
(
i
^
−
j
^
+
k
^
)
(\hat{i} - \hat{j} + \hat{k})
(
i
^
−
j
^
+
k
^
)
and
(
i
^
+
j
^
−
k
^
)
(\hat{i} + \hat{j} - \hat{k})
(
i
^
+
j
^
−
k
^
)
.
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