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Mathematics
Mathematics
Problem
For the vector
u
=
6
i
^
+
8
j
^
\mathbf{u}=6\hat i+8\hat j
u
=
6
i
^
+
8
j
^
: a. (i) Find its magnitude. b. (ii) Find the acute angle it makes with the positive
x
x
x
-axis.
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