Determine if each of the following sets with the indicated operations of addition and scalar multiplication are a vector space. If so, verify the axioms, and if not, indicate at least one axiom that fails. i) Let V be the set of all positive real numbers. Define the operations of addition and scalar multiplication Ⓒ by x + y = xy and x©y=x² where the operations on the right side of each equation is usual real number multiplication and exponen- tial, respectively. ii) Let V denote the vectors in R2 with the usual vector addition, but scalar multiplication is instead defined as I -- C = CI
Determine if each of the following sets with the indicated operations of addition and scalar multiplication are a vector space. If so, verify the axioms, and if not, indicate at least one axiom that fails. i) Let V be the set of all positive real numbers. Define the operations of addition and scalar multiplication Ⓒ by x + y = xy and x©y=x² where the operations on the right side of each equation is usual real number multiplication and exponen- tial, respectively. ii) Let V denote the vectors in R2 with the usual vector addition, but scalar multiplication is instead defined as I -- C = CI
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question

Transcribed Image Text:Determine if each of the following sets with the indicated operations of addition and scalar multiplication are
a vector space. If so, verify the axioms, and if not, indicate at least one axiom that fails.
i) Let V be the set of all positive real numbers. Define the operations of addition and scalar multiplication
Ⓒ by
x + y = xy and
x©y=x²
where the operations on the right side of each equation is usual real number multiplication and exponen-
tial, respectively.
ii) Let V denote the vectors in R2 with the usual vector addition, but scalar multiplication is instead defined
as
I
-D-C
с
=
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