Find a unit vector that is orthogonal to both u and v. u = (-8, -6, 4) v = (17, -18, –1) V =

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
icon
Related questions
icon
Concept explainers
Question

bg

### Problem Statement

**Objective:** Find a unit vector that is orthogonal to both **u** and **v**.

Given vectors:

\[ \mathbf{u} = \langle -8, -6, 4 \rangle \]

\[ \mathbf{v} = \langle 17, -18, -1 \rangle \]

### Explanation

To find a vector that is orthogonal to both **u** and **v**, we need to compute the cross product of **u** and **v**. The cross product of two vectors in three-dimensional space is a vector that is orthogonal to both.

#### Steps:

1. **Compute the cross product** \(\mathbf{u} \times \mathbf{v}\).
2. **Normalize the resulting vector** to get a unit vector.

The cross product formula for vectors \(\mathbf{u} = \langle u_1, u_2, u_3 \rangle\) and \(\mathbf{v} = \langle v_1, v_2, v_3 \rangle\) is:

\[ \mathbf{u} \times \mathbf{v} = \langle u_2v_3 - u_3v_2, u_3v_1 - u_1v_3, u_1v_2 - u_2v_1 \rangle \]

### Applying the Formula:

1. Calculate the components:

   \[
   x = (-6 \cdot (-1)) - (4 \cdot (-18))
   \]
   \[
   y = (4 \cdot 17) - (-8 \cdot (-1))
   \]
   \[
   z = (-8 \cdot (-18)) - (-6 \cdot 17)
   \]

2. Simplify each component:

   \[
   x = 6 + 72 = 78
   \]
   \[
   y = 68 - 8 = 60
   \]
   \[
   z = 144 - 102 = 42
   \]

Resulting vector from the cross product:

\[ \mathbf{w} = \langle 78, 60, 42 \rangle \]

3. **Normalize the vector** to get the unit vector. The magnitude \(|\mathbf{w}|\) is computed
Transcribed Image Text:### Problem Statement **Objective:** Find a unit vector that is orthogonal to both **u** and **v**. Given vectors: \[ \mathbf{u} = \langle -8, -6, 4 \rangle \] \[ \mathbf{v} = \langle 17, -18, -1 \rangle \] ### Explanation To find a vector that is orthogonal to both **u** and **v**, we need to compute the cross product of **u** and **v**. The cross product of two vectors in three-dimensional space is a vector that is orthogonal to both. #### Steps: 1. **Compute the cross product** \(\mathbf{u} \times \mathbf{v}\). 2. **Normalize the resulting vector** to get a unit vector. The cross product formula for vectors \(\mathbf{u} = \langle u_1, u_2, u_3 \rangle\) and \(\mathbf{v} = \langle v_1, v_2, v_3 \rangle\) is: \[ \mathbf{u} \times \mathbf{v} = \langle u_2v_3 - u_3v_2, u_3v_1 - u_1v_3, u_1v_2 - u_2v_1 \rangle \] ### Applying the Formula: 1. Calculate the components: \[ x = (-6 \cdot (-1)) - (4 \cdot (-18)) \] \[ y = (4 \cdot 17) - (-8 \cdot (-1)) \] \[ z = (-8 \cdot (-18)) - (-6 \cdot 17) \] 2. Simplify each component: \[ x = 6 + 72 = 78 \] \[ y = 68 - 8 = 60 \] \[ z = 144 - 102 = 42 \] Resulting vector from the cross product: \[ \mathbf{w} = \langle 78, 60, 42 \rangle \] 3. **Normalize the vector** to get the unit vector. The magnitude \(|\mathbf{w}|\) is computed
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Points, Lines and Planes
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman
Precalculus
Precalculus
Calculus
ISBN:
9780135189405
Author:
Michael Sullivan
Publisher:
PEARSON
Calculus: Early Transcendental Functions
Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning