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Mathematics
Problem
The vector
i
^
+
j
^
+
k
^
\hat{i} + \hat{j} + \hat{k}
i
^
+
j
^
+
k
^
has magnitude (a) 1 (b)
2
\sqrt{2}
2
(c)
3
\sqrt{3}
3
(d) 3
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