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Project ID:
1003055713
Accepted:
1
Clonable:
0
Easy:
1
Vyberte správny výraz.
\( \{d\}\cup \{d\}\cup \{d\} = \{d\} \)
\( \{d\}\cup \{d\}\cup \{d\} = \{ddd\} \)
\( \{d\}\cup \{d\}\cup \{d\} = \{d;d\} \)
\( \{d\}\cup \{d\}\cup \{d\} = \{d;d;d\} \)