Question

Let \(\vec{u} = -4\vec{i} + 2\vec{j}\) and \(\vec{v} = 3\vec{i}\) and \(\vec{w} = \vec{i} + 5\vec{j}\). Determine: 9. \(\vec{u} + \vec{v}\) 10. \(\vec{u} - \vec{v}\) 11. \(2\vec{u} + 5\vec{w}\) 12. \(4\vec{v} - 3\vec{w}\) 13. \(|\vec{u}|\) 14. \(|\vec{v}|\) 15. \(|\vec{w}|\) 16. \(|\vec{u} + \vec{v}|\) 17. \(|\vec{u} - \vec{v}|\) 18. \(|4\vec{v} - 3\vec{w}|\)

          Let \(\vec{u} = -4\vec{i} + 2\vec{j}\) and \(\vec{v} = 3\vec{i}\) and \(\vec{w} = \vec{i} + 5\vec{j}\). Determine:
9. \(\vec{u} + \vec{v}\)
10. \(\vec{u} - \vec{v}\)
11. \(2\vec{u} + 5\vec{w}\)
12. \(4\vec{v} - 3\vec{w}\)
13. \(|\vec{u}|\)
14. \(|\vec{v}|\)
15. \(|\vec{w}|\)
16. \(|\vec{u} + \vec{v}|\)
17. \(|\vec{u} - \vec{v}|\)
18. \(|4\vec{v} - 3\vec{w}|\)

Let u⃗ = -4i⃗ + 2j⃗ and v⃗ = 3i⃗ and w⃗ = i⃗ + 5j⃗. Determine:
9. u⃗ + v⃗
10. u⃗ - v⃗
11. 2u⃗ + 5w⃗
12. 4v⃗ - 3w⃗
13. |u⃗|
14. |v⃗|
15. |w⃗|
16. |u⃗ + v⃗|
17. |u⃗ - v⃗|
18. |4v⃗ - 3w⃗|

Added by Fernando G.

Precalculus with Limits

Ron Larson 2nd Edition

Instant Answer

Solved by Expert Moses Obasola

Step 1

9.u + v = 9(-4i + 2j) + 3i = -36i + 18j + 3i = -33i + 18j Show more…

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Let u = -4i + 2j, v = 3i, and w = 1 + 5j. Determine: 9u + v 10u - v 11, 2u + w 12. 41 - 3w 13. |u| 14. |v| 15. |w| 16. |u + v| 17. |u - v| 18. |4v - 3w|