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Mathematics
Mathematics
Problem
Given
a
=
2
i
+
3
j
−
k
\mathbf{a}=2\mathbf{i}+3\mathbf{j}-\mathbf{k}
a
=
2
i
+
3
j
−
k
and
b
=
−
i
+
4
j
+
2
k
\mathbf{b}=-\mathbf{i}+4\mathbf{j}+2\mathbf{k}
b
=
−
i
+
4
j
+
2
k
, calculate
3
a
−
2
b
3\mathbf{a}-2\mathbf{b}
3
a
−
2
b
.
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