Question

Which of the following seta is an empty set ?
a) A={x:x belongs to N, 2x+5=6}
b) B={x:x belongs to N, 1 c) C={x:x is an even prime}
d) D={x:x belongs to Q, 1

Answer 1

Answer:

option a ) A=[x:xbelongs to N.2x+5=6

Answer 2

Answer:

Set $A$

Step-by-step explanation:

The set $A$ says the elements inside it are natural numbers and the double of every element plus 5 should be 6. There is no such natural number that satisfies the condition, and hence, set A is an empty set.