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Test de evaluare pentru mulțimi finite și infinite.
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* Indicates required question
1. Stabiliti cardinalul multimi A = { x | x este litera din cuvantul 'caiet' }
*
2 points
card A = 4
card A = 5
card A = 6
card A = { c,a,i,e,t }
card A = 0
2. Stabiliti cardinalul multimii A = { x | x ∈ ℕ* si x < 2015 }
*
2 points
card A = 2014
card A = 2015
card A = 2016
card A = 2013
card A = 0
3. Fie multimea M = { x | x ∈ ℕ si x ≤ 2016 } Stabiliti propozitiile adevarate.
*
2 points
card M = 2017
card M = 2015
card M = 2016
M este o multime finita
card M = 0
Required
4. Aflati cardinalul multimii S = { x | x ∈ ℕ*, x<35 si x este divizibil cu 5 }
*
2 points
card S = 8
card S = 7
card S = 6
card S = 5
card S = 4
5. Stabiliti care dintre multimile de mai jos sunt multimi infinite:
*
2 points
ℕ
ℕ*
A = { x | x este elev in clasa V si traieste in Romania }
B = { x | x ∈ ℕ si x > 15 }
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