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Problem
Problem
If
a
=
2
i
^
+
3
j
^
+
4
k
^
\mathbf{a} = 2\hat{i} + 3\hat{j} + 4\hat{k}
a
=
2
i
^
+
3
j
^
+
4
k
^
and
b
=
4
i
^
+
3
j
^
+
2
k
^
\mathbf{b} = 4\hat{i} + 3\hat{j} + 2\hat{k}
b
=
4
i
^
+
3
j
^
+
2
k
^
, find the angle between
a
and
b
.
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