am atașat rezolvarea.
*** AM EDITAT ***
A={x∈N/ 100≤x<111}
A={100,101,102,.....,110}
B={x∈A/ x≡2}
B={100,102,104,106,108,110}
C={x∈A/ 4/x}
C={100,104,108}
D={x∈A/ x∈M₅}
D={100,105,110}
E={x∈A / 10/x}
E={100,110}
F={x∈A/ x≡25}
F={100}
