7. Calculate the angle between x = 7 and 5 =3 when x y=10.5 8. Express c=(-1,2) as a linear combination of a = (-11,7) and b = (-3,1). Explain why the set of vectors spans R² 9. For the vectors x=(1,1) and y = (1,-1), determine vector projection of x onto y
7. Calculate the angle between x = 7 and 5 =3 when x y=10.5 8. Express c=(-1,2) as a linear combination of a = (-11,7) and b = (-3,1). Explain why the set of vectors spans R² 9. For the vectors x=(1,1) and y = (1,-1), determine vector projection of x onto y
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter10: Analytic Geometry
Section10.6: The Three-dimensional Coordinate System
Problem 7E
Question
please answer all i really need it and make sure it’s correct
![7. Calculate the angle between x = 7 and 5 =3 when x y=10.5
8. Express c=(-1,2) as a linear combination of a = (-11,7) and b = (-3,1). Explain
why the set of vectors spans R²
9. For the vectors x=(1,1) and y = (1,-1), determine vector projection of x onto y](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F671fc284-4f65-440a-8dd1-e4cec98b045b%2F3a4a32a1-473a-415e-9f19-eaf0077bc9f0%2Fil07kbk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7. Calculate the angle between x = 7 and 5 =3 when x y=10.5
8. Express c=(-1,2) as a linear combination of a = (-11,7) and b = (-3,1). Explain
why the set of vectors spans R²
9. For the vectors x=(1,1) and y = (1,-1), determine vector projection of x onto y
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