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Mathematics
Problem
The unit vector bisecting
O
Y
OY
O
Y
and
O
Z
OZ
O
Z
is a.
i
^
+
j
^
+
k
^
3
\frac{\hat{i} + \hat{j} + \hat{k}}{\sqrt{3}}
3
i
^
+
j
^
+
k
^
b.
j
^
−
k
^
2
\frac{\hat{j} - \hat{k}}{\sqrt{2}}
2
j
^
−
k
^
c.
j
^
+
k
^
2
\frac{\hat{j} + \hat{k}}{\sqrt{2}}
2
j
^
+
k
^
d.
−
j
^
+
k
^
2
\frac{-\hat{j} + \hat{k}}{\sqrt{2}}
2
−
j
^
+
k
^
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