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Mathematics
Problem
Let
a
=
12
i
^
+
n
j
^
\mathbf{a} = 12\hat{i} + n\hat{j}
a
=
12
i
^
+
n
j
^
and
∣
a
∣
=
13
|\mathbf{a}| = 13
∣
a
∣
=
13
, find the value of
n
n
n
.
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