erinbrewster3321 erinbrewster3321
  • 09-01-2024
  • Mathematics
contestada

Let a={1,2,3}. If f:P(a)→Z, for x⊆a, f(x)=∣x∣, what is f({1,2})?
a) 0
b) 1
c) 2
d) 3

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