Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
Related questions
Question

Transcribed Image Text:Vectors in the Plane u = (3,-2) and v = (-2,5). Find the (a)
component form and (b) magnitude (length) of the vector.
1. 3u
2. -2v
3. u + v
4. u - v
5. 2u - 3v
6. -2u + 5v
3.
7.
5u +
5V
5
8.
134+
12
13
a. v.u, v, Ju
b. the cosine of the angle between v and u
c. the scalar component of u in the direction of v
d. the vector proj, u.
1. v = 2i – 4j + V5k, u = -2i + 4j - V5k
2. v = (3/5)i + (4/5)k, u = 5i + 12j
3. v = 10i + 11j - 2k,
u = 3j + 4k
4. v 2i + 10j - 11k, u = 2i + 2j + k
5. v = 5j – 3k, u = i +j + k
6. v = -i + j. u = V2i + V3j + 2k
7. v = 5i + j.
u = 2i + V17.
1
8. v =
1
1
u =
V2 V3.
V2
V3.
Angle Between Vectors
T Find the angles between the vectors
9. u = 21 + j.
10. u = 21 - 2i + k.
v =i+ 21 -k
v = 31 + 4k
11. u = V3i - 7j.
v = V3i +j - 2k
12. u = i+ V2j - V2k, v = -i +j+k
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