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Mathematics
Mathematics
Problem
Find the magnitude of the vector
a
=
3
i
−
4
j
+
12
k
\mathbf{a}=3\mathbf{i}-4\mathbf{j}+12\mathbf{k}
a
=
3
i
−
4
j
+
12
k
. a)
17
17
17
b)
169
169
169
c)
13
13
13
d)
19
19
19
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