MTH 120 — Summer — 2005
Essex County College — Division of Mathematics
Quiz # 101— Printed June 15, 2005
Name:
Signature:
Show all work clearly and in order, and box your final answers . Justify your answers alge-
braically whenever possible. You have 20 minutes to take this 10 point quiz. When you do use
your calculator, sketch all relevant graphs and write down all relevant mathematics.
1. Given
u=h−1,3i,v=h−5,−4i,w=h3,−7i,
find.
(a) u−3v
(b) 5w+ 3v
(c) u·v
(d) kvk
(e) kv−wk
(f) The angle between uand w.
1This document was prepared by Ron Bannon using L
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