8. Use vectors u = -3i - 3j, v = -li, and w = 5i + 6j %3D a. Determine the angle between u and w. a. Find (u+w) w 9. Verify the identity 2 sec' x 1-sin x 1+sin

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.3: Lines And Planes
Problem 32EQ
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8. Use vectors u =-3i - 3j, v = -li, and w = 5i + 6j
%3D
a.
Determine the angle between u and w.
a. Find (u+w) 'w
9. Verify the identity
1
2 sec x
1-sin x 1+sin r
Transcribed Image Text:8. Use vectors u =-3i - 3j, v = -li, and w = 5i + 6j %3D a. Determine the angle between u and w. a. Find (u+w) 'w 9. Verify the identity 1 2 sec x 1-sin x 1+sin r
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