Answer
$\frac{3}{4}$
Work Step by Step
Recall that $\cdot= a_{1}a_{2}+b_{1}b_{2}$
Then, $\cdot<3,\frac{1}{2}>=\frac{1}{6}\times3+\frac{1}{2}\times\frac{1}{2}= \frac{3}{4}$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 13 - Vector Geometry - 13.3 Dot Product and the Angle Between Two Vectors - Exercises - Page 666: 6
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