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Cardinalul mulţimii A={ x  IN / x + 2 < 7 } este : a) 3 b) 4 c) 5 d) 6.
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Cardinalul mulţimii A={ x  IN / x + 2 < 7 } este : a) 3 b) 4 c) 5 d) 6.

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A few minutes ago he said that he had
User Fdehanne
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