anonymous
  • anonymous
Let Z denote the set of all integers with addition defined in the usual way, and define scalar multiplication, denoted o, by: alpha o k = [[alpha]].k for all k in Z where [[alpha]] denotes the greatest integer less than or equal to alpha, for example, 2.25 o 4 = [[2.25]].4 =2..4 = 8 show that Z, together with these operations, is not a vector space. Which axioms fail to hold?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Distributivity of scalar multiplication with respect to field addition (a + b)v = av + bv Compatibility of scalar multiplication with field multiplication a(bv) = (ab)v
anonymous
  • anonymous
I agree with the second answer, but why the Distributivity of scalar multiplication with respect to field addition fail to hold ?
experimentX
  • experimentX
straight out of wikipedia Distributivity of scalar multiplication with respect to field addition (a + b)v = av + bv let a=2.5 and b=3.5

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anonymous
  • anonymous
oh I see never mind, thx :)
anonymous
  • anonymous
let them better be a=2,5 and b=3,6
anonymous
  • anonymous
what was ur approach to finding the solutions please ? did you test for all axioms one by one ?
anonymous
  • anonymous
not really, becouse all the rest are not afected by any weird definition. Just this two
experimentX
  • experimentX
the other one also seem to work Compatibility of scalar multiplication with field multiplication a(bv) = (ab)v a=4 and b=2.5
anonymous
  • anonymous
hum ok I see, thank you mate
anonymous
  • anonymous
you have to choose two numbers where decimal part sum is bigger than 1

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