Step Justification -(-v) + (-v) = 0 and v + (-v) = 0 ---Select--- --Select-- -(-v) + (-v) = v + (-v) additive identity property additive inverse property associative property of multiplication add v to both sides -(-v) + (-v) + v = v + (-v) + v -(-v) + ((-v) + v) = v + ((-v) + v) || commutative property of addition associative property of addition distributive property multiplicative identity property -(-v) + 0 = v + 0 -(-v) = v

Algebra and Trigonometry (6th Edition)
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ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Complete the proof of Property 6 of the following theorem by supplying the justification for each step.
Properties of Additive Identity and Additive Inverse
Let v be a vector in R", and let c be a scalar. Then the properties below are true.
1. The additive identity is unique. That is, if v + u = v, then u = 0.
2. The additive inverse of v is unique. That is, if v + u = 0, then u = -v.
3. Ov = 0
4. c0 = 0
5. If cv = 0, then c = 0 or v = 0.
6. -(-v) = v
Use the properties of vector addition and scalar multiplication from the following theorem.
Properties of Vector Addition and Scalar Multiplication in R"
Let u, v, and w be vectors in R", and let c and d be scalars.
1. u + v is a vector in R".
Closure under addition
2. u + v = v + u
Commutative property of addition
Associative property of addition
Additive identity property
Additive inverse property
3. (u + v) + w = u + (v + w)
4. u + 0 = u
5. u + (-u) = 0
6. cu is a vector in R"
7. c(u + v) = cu + cv
8. (c + d)u = cu + du
9. c(du) = (cd)u
10. 1(u) = u
Closure under scalar multiplication
Distributive property
Distributive property
Associative property of multiplication
Multiplicative identity property
Step
Justification
-(-v) + (-v) = 0 and v + (-v) = 0
---Select--
-(-v) + (-v) = v + (-v)
transitive property of equality
-(-v) + (-v) + v = v + (-v) + v
-Select---
Transcribed Image Text:Complete the proof of Property 6 of the following theorem by supplying the justification for each step. Properties of Additive Identity and Additive Inverse Let v be a vector in R", and let c be a scalar. Then the properties below are true. 1. The additive identity is unique. That is, if v + u = v, then u = 0. 2. The additive inverse of v is unique. That is, if v + u = 0, then u = -v. 3. Ov = 0 4. c0 = 0 5. If cv = 0, then c = 0 or v = 0. 6. -(-v) = v Use the properties of vector addition and scalar multiplication from the following theorem. Properties of Vector Addition and Scalar Multiplication in R" Let u, v, and w be vectors in R", and let c and d be scalars. 1. u + v is a vector in R". Closure under addition 2. u + v = v + u Commutative property of addition Associative property of addition Additive identity property Additive inverse property 3. (u + v) + w = u + (v + w) 4. u + 0 = u 5. u + (-u) = 0 6. cu is a vector in R" 7. c(u + v) = cu + cv 8. (c + d)u = cu + du 9. c(du) = (cd)u 10. 1(u) = u Closure under scalar multiplication Distributive property Distributive property Associative property of multiplication Multiplicative identity property Step Justification -(-v) + (-v) = 0 and v + (-v) = 0 ---Select-- -(-v) + (-v) = v + (-v) transitive property of equality -(-v) + (-v) + v = v + (-v) + v -Select---
6. -(-v) = v
Use the properties of vector addition and scalar multiplication from the following theorem.
Properties of Vector Addition and Scalar Multiplication in R"
Let u, v, and w be vectors in R", and let c and d be scalars.
1. u + v is a vector in R".
Closure under addition
2. u + v = v + u
Commutative property of addition
Associative property of addition
Additive identity property
Additive inverse property
3. (u + v) + w = u + (v + w)
4. u + 0 = u
5. u + (-u) = 0
6. cu is a vector in R".
7. c(u + v) = cu + cv
Closure under scalar multiplication
Distributive property
Distributive property
8. (c + d)u = cu + du
9. c(du) = (cd)u
10. 1(u) = u
Associative property of multiplication
Multiplicative identity property
Step
Justification
-(-v) + (-v) = 0 and v + (-v) = 0
-Select--
-Select--
additive identity property
additive inverse property
associative property of multiplication
add v to both sides
-(-v) + (-v) = v + (-v)
-(-v) + (-v) + v = v + (-v) + v
-(-v) + ((-v) + v) = v + ((-v) + v)
commutative property of addition
associative property of addition
distributive property
multiplicative identity property
-(-v) + 0 = v + 0
-(-v) = v
Transcribed Image Text:6. -(-v) = v Use the properties of vector addition and scalar multiplication from the following theorem. Properties of Vector Addition and Scalar Multiplication in R" Let u, v, and w be vectors in R", and let c and d be scalars. 1. u + v is a vector in R". Closure under addition 2. u + v = v + u Commutative property of addition Associative property of addition Additive identity property Additive inverse property 3. (u + v) + w = u + (v + w) 4. u + 0 = u 5. u + (-u) = 0 6. cu is a vector in R". 7. c(u + v) = cu + cv Closure under scalar multiplication Distributive property Distributive property 8. (c + d)u = cu + du 9. c(du) = (cd)u 10. 1(u) = u Associative property of multiplication Multiplicative identity property Step Justification -(-v) + (-v) = 0 and v + (-v) = 0 -Select-- -Select-- additive identity property additive inverse property associative property of multiplication add v to both sides -(-v) + (-v) = v + (-v) -(-v) + (-v) + v = v + (-v) + v -(-v) + ((-v) + v) = v + ((-v) + v) commutative property of addition associative property of addition distributive property multiplicative identity property -(-v) + 0 = v + 0 -(-v) = v
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