Let
a
⃗
=
2
i
⃗
−
j
⃗
+
3
k
⃗
\displaystyle \vec{{a}}={2}\vec{{i}}-\vec{{j}}+{3}\vec{{k}}
a
=
2
i
−
j
+
3
k
. Find
∣
a
⃗
∣
\displaystyle {\left|\vec{{a}}\right|}
∣
a
∣
.
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Enter DNE for Does Not Exist, oo for Infinity