Problem Set 1

8 find the cosine of the angle between 4 4 2 and 2 3 6

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Unformatted text preview: nd the actual angle. 8. Find the cosine of the angle between 4, −4, 2 and 2, 3, 6 . Using Matlab find the actual angle. 9. 23 −1 1 · 1 −4 10. 1 −4 · 23 −1 1 11. 3 −1 2 1 · 2 3 12. 1 2 · 3 3 1 −1 2 13. 1 · −4 2 2 3 −1 −1 1 2 14. 13 2 −1 · 3 −1 1 2 15. 2 −1 3 1 1 −4 −2 3 1 −4 · −2 3 16. · 2 −1 3 1 17. 2 −1 0 3 1 · 4 1 −2 −4 3 0 1 18. 1 −4 2 · −1 0 −2 0 31 3 1 4 19. Verify by multiplying out: 1 −2 0 −4 31 23 · −1 1 · 04 −1 2 32 = 2 1 −2 −4 3 0 1 2 · −1 0 3 1 · 4 −1 2 32...
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