4. As in the previous problems, suppose that ü1, ü2, ü3 are pairwise orthogonal unit vectors. Suppose also that = c₁ü₁ + c₂Ü2 + сzü3 for some scalars C1, C2, C3. (a) Calculate and simplify *•ü₁ = Ï· U₂ = 14

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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4. As in the previous problems, suppose that ü1, ü2, ü3 are pairwise orthogonal unit vectors. Suppose
also that = c₁ü₁ + с₂Ü2 + c3üz for some scalars C₁, C2, C3.
(a) Calculate and simplify
•ü₁ =
Ï·ū₂ =
Ï•üz =
(b) This problem might seem silly, but ... Calculate
0.0₁ =
Ō. Ü₂ =
Ö. Ü3 =
(c) Suppose = €₁ü₁ + €₂Ü₂ + C3Ü3 where c₁, c2, and c3 are scalars such that = 0. Is it possible
that some/all of C1, C2, C3 are nonzero? Explain. Hint: put together what you learned in the
previous two parts.
(d) What does that information tell us about {u₁, 2, U3}?
Transcribed Image Text:4. As in the previous problems, suppose that ü1, ü2, ü3 are pairwise orthogonal unit vectors. Suppose also that = c₁ü₁ + с₂Ü2 + c3üz for some scalars C₁, C2, C3. (a) Calculate and simplify •ü₁ = Ï·ū₂ = Ï•üz = (b) This problem might seem silly, but ... Calculate 0.0₁ = Ō. Ü₂ = Ö. Ü3 = (c) Suppose = €₁ü₁ + €₂Ü₂ + C3Ü3 where c₁, c2, and c3 are scalars such that = 0. Is it possible that some/all of C1, C2, C3 are nonzero? Explain. Hint: put together what you learned in the previous two parts. (d) What does that information tell us about {u₁, 2, U3}?
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