Question

n'
e) A = {x|x =n€ N, 2<5};
B = {x | x is a composite number, x < _9}​

Answer 1

1 St question improper and second answer is

B=(4,6,8,9)

x is less than or equal to 9 and is a composite number.

composite number :number which has more than two factors

so between 1 to 9, 1 is neither prime nor composite.2,3,5,7 are primes and remaining are 4,6,8,9