8. Let ū = (0, –5) and i = (v2, –v2). (a) Find –5u + 3ữ. (b) Find ū · v. (c) Find |ū| and |ū]. (d) If 0 is the angle between ī and ī, find cos 0. (e) Find 0.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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8. Let ū = (0, –5) and i = (v2, –v2).
(a) Find –5u + 3ữ.
(b) Find ū · v.
(c) Find |ū| and |ū].
(d) If 0 is the angle between ī and ī, find cos 0.
(e) Find 0.
Transcribed Image Text:8. Let ū = (0, –5) and i = (v2, –v2). (a) Find –5u + 3ữ. (b) Find ū · v. (c) Find |ū| and |ū]. (d) If 0 is the angle between ī and ī, find cos 0. (e) Find 0.
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