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Mathematics
Mathematics
Problem
Find the angle (in degrees, correct to one decimal place) between the vectors
3
i
+
4
j
3\mathbf{i}+4\mathbf{j}
3
i
+
4
j
and
i
+
3
j
\mathbf{i}+3\mathbf{j}
i
+
3
j
.
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