Parte:
Project ID:
1003055713
Accepted:
1
Clonable:
0
Easy:
1
Elige la expresión correcta.
\( \{d\}\cup \{d\}\cup \{d\} = \{d\} \)
\( \{d\}\cup \{d\}\cup \{d\} = \{ddd\} \)
\( \{d\}\cup \{d\}\cup \{d\} = \{d;d\} \)
\( \{d\}\cup \{d\}\cup \{d\} = \{d;d;d\} \)