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. co - 0 5. If cv - 0, then c - 0 or v - 0. 6. -(-v) = v e 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". 2. u + v- v + u 3. (u + u) + w - u + (u + w) 4. u + 0 -u 5. u + (-u) - 0 6. cu is a vector in R". 7. cu + v) = cu + cv 8. (c + d)u = cu + du 9. c(du) = (cơ)u 10. 1(u) = u Closure under addition Commutative property of addition Associative property of addition Additive identity property Additive inverse property Closure under scalar multiplication Distributive property Distributive property Associative property of multiplication Multiplicative identity property Step Justification c0 = c(0 + 0) --Select--- c0 = c0 + c0 ---Select-- D+ (-c0) = (c0 + c0) + (-c0) -Select-- 0 = (c0 + c0) + (-co) 0 = c0 + (c0 + (-co)) 0 = c0 + 0 ---Select--- --Select-- --Select-- 0 = c0 --Select--
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. co - 0 5. If cv - 0, then c - 0 or v - 0. 6. -(-v) = v e 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". 2. u + v- v + u 3. (u + u) + w - u + (u + w) 4. u + 0 -u 5. u + (-u) - 0 6. cu is a vector in R". 7. cu + v) = cu + cv 8. (c + d)u = cu + du 9. c(du) = (cơ)u 10. 1(u) = u Closure under addition Commutative property of addition Associative property of addition Additive identity property Additive inverse property Closure under scalar multiplication Distributive property Distributive property Associative property of multiplication Multiplicative identity property Step Justification c0 = c(0 + 0) --Select--- c0 = c0 + c0 ---Select-- D+ (-c0) = (c0 + c0) + (-c0) -Select-- 0 = (c0 + c0) + (-co) 0 = c0 + (c0 + (-co)) 0 = c0 + 0 ---Select--- --Select-- --Select-- 0 = c0 --Select--
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.2: Determinants
Problem 7AEXP
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