Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Parts A-C

7. Let i = (2v3, 2) and ở = (-1, v3).
(a) Find 3u – 20.
(b) Find ū · J.
(c) Find ū and |u|.
(d) If 0 is the angle between ū and ī, find cos 0.
(e) Find 0.
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Transcribed Image Text:7. Let i = (2v3, 2) and ở = (-1, v3). (a) Find 3u – 20. (b) Find ū · J. (c) Find ū and |u|. (d) If 0 is the angle between ū and ī, find cos 0. (e) Find 0.
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