Is this Set and Operation a Vector Space?

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heytheree
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question in attachment. please help!
 
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  • Typed exercise 1: determine whether the subset of R^3 with all coordinates positive is a vector space under the given nonstandard addition and scalar multiplication, where c ⊙ (x1, x2, x3) = (x1^c, x2^c, x3^c).
    vector operations.png
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What are the vector space axioms? Once you have these listed, then check if your space satisfies each of these axioms.
 
Do you know what a vector space is?
 
Clearly whoever gave you this problem expects you to know what a "vector space" is. The various "rules" given in the definition of "vector space" are the "vector space axioms" jgens is referring to.
 
heytheree said:
yeah..i know what a vector space is..

Ok, then just go 1-by-1 through the axioms and see if this set and this operation "pass" each one. If it doesn't pass one, then it isn't a vector space.