Question

5)
2 poin
B = {2/5x - 2 = 0,1 E N}is
....... set.
(72
Singleton
O Empty
O Both
None​

Answer 1

Answer:

(i) A set of odd natural numbers divisible by 2 is a null set because no odd number is divisible by 2.

(ii) A={2}.

A set of even prime numbers is not a null set because 2 is an even prime number.

(iii) {x:x is a natural number,x<5 andx>7} is a null set because a number cannot be simultaneously less than 5 and greater than 7.

(iv) {y:y is a point common to any two parallel lines} is a null set because parallel lines do not intersect. Hence, they have no common point.