Answer:
1. {2, 3, 5, 7, 11, 13, 17, 19}
2. {23, 29, 31, 37}
3. {7, 13, 19}
4. {37, 43}
Step-by-step explanation:
By extension, the set E, is given by:
E={2, 3, 5, 7, 11, ...}
In the same way, the set T, is given by:
T={4, 7, 10, 13, ...} = {t/ t is integer and (z-1) it is divisible by 3}
Let's call E1 the set of primes in E between 1 and 20.
Let's call E2 the set of primes in E between 21 and 40.
Let's call T1 the set of primes in T between 1 and 30.
Let's call T2 the set of primes in T between 31 and 60. Thus,
E1={2, 3, 5, 7, 11, 13, 17, 19}
E2={23, 29, 31, 37}
T1={7, 13, 19}
T2={37, 43}
