@ 45% AT&T 4:01 PM Homework List Вack (b) Briefly explain why the cosine of the angle between two unit vectors is simply their dot product. (c) Use the observation in (b) to find the angle between a and b. This is the same angle between the bonds of the methane molecule CH4 (d) Use the internet to confirm the angle between bonds of the methane molecule. What web site did you use? 26 Show that d(a,b) equals this 3 (e) It turns out that each edge of the tetrahedron has length number. (See the Definition at the bottom of page 23.) Section 2.1 1. p. 63 #12 (give a vector and a parametric form) 2. p. 63 #14 (give a vector and a parametric form) 3. Solve the system below by back substitution 2.x+3y-z0 5y 4z 22 2z 16 4. p. 63 # 28 5. p. 63 #30 6. p. 63 #34 (Use row reduction) 7. p. 63 #36 (Use any technique) 8. Determine the solution set of the linear system whose augmented matrix is given below. 3 2 2 1 2 -2 -1 -2| 3 1 4 9. Determine the solution set of the linear system whose augmented matrix is given below (such a system is called a homogeneous system). Is the nature of the solution set (no solution, unique solution, infinitely many solutions) the same as in #8? Explain your answer. 1 3 2 -1 1 2 1-20 Notifications Dashboard Calendar To Do Inbox
@ 45% AT&T 4:01 PM Homework List Вack (b) Briefly explain why the cosine of the angle between two unit vectors is simply their dot product. (c) Use the observation in (b) to find the angle between a and b. This is the same angle between the bonds of the methane molecule CH4 (d) Use the internet to confirm the angle between bonds of the methane molecule. What web site did you use? 26 Show that d(a,b) equals this 3 (e) It turns out that each edge of the tetrahedron has length number. (See the Definition at the bottom of page 23.) Section 2.1 1. p. 63 #12 (give a vector and a parametric form) 2. p. 63 #14 (give a vector and a parametric form) 3. Solve the system below by back substitution 2.x+3y-z0 5y 4z 22 2z 16 4. p. 63 # 28 5. p. 63 #30 6. p. 63 #34 (Use row reduction) 7. p. 63 #36 (Use any technique) 8. Determine the solution set of the linear system whose augmented matrix is given below. 3 2 2 1 2 -2 -1 -2| 3 1 4 9. Determine the solution set of the linear system whose augmented matrix is given below (such a system is called a homogeneous system). Is the nature of the solution set (no solution, unique solution, infinitely many solutions) the same as in #8? Explain your answer. 1 3 2 -1 1 2 1-20 Notifications Dashboard Calendar To Do Inbox
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 50E
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Question
#9
Transcribed Image Text:@ 45%
AT&T
4:01 PM
Homework List
Вack
(b) Briefly explain why the cosine of the angle between two unit vectors is simply their dot product.
(c) Use the observation in (b) to find the angle between a and b. This is the same angle between
the bonds of the methane molecule CH4
(d) Use the internet to confirm the angle between bonds of the methane molecule. What web site
did you use?
26
Show that d(a,b) equals this
3
(e) It turns out that each edge of the tetrahedron has length
number. (See the Definition at the bottom of page 23.)
Section 2.1
1. p. 63 #12 (give a vector and a parametric form)
2. p. 63 #14 (give a vector and a parametric form)
3. Solve the system below by back substitution
2.x+3y-z0
5y 4z 22
2z 16
4. p. 63 # 28
5. p. 63 #30
6. p. 63 #34 (Use row reduction)
7. p. 63 #36 (Use any technique)
8. Determine the solution set of the linear system whose augmented matrix is given below.
3
2
2
1
2
-2
-1
-2|
3
1
4
9. Determine the solution set of the linear system whose augmented matrix is given below (such a
system is called a homogeneous system). Is the nature of the solution set (no solution, unique
solution, infinitely many solutions) the same as in #8? Explain your answer.
1
3
2
-1
1
2
1-20
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