Question

Please help me as fast as possible . I will mark the first person brainlist . Help me fast ..

Answer 1

Answer:

1) A={x:x is a prime number, 40<x<48}

2) B={x:x is a natural number, 6<x<12}

3) C={x:x is equals to 1/n, where n belongs to N}

4) D={x:x is equals to n/n+1, where n belongs to N}