Let ū = -4î + 4ĵ – 3k and i = î – 25 + 2k. (a) Let w = proj, ū. Compute w. (b) Compute u-w and show that u- w is orthogonal to w.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 19E
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Let ū = -4î + 4ĵ – 3k and i= î – 25+ 2k.
(a) Let w = proj, ū. Compute w.
(b) Compute u-w and show that u- w is orthogonal to w.
Transcribed Image Text:Let ū = -4î + 4ĵ – 3k and i= î – 25+ 2k. (a) Let w = proj, ū. Compute w. (b) Compute u-w and show that u- w is orthogonal to w.
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