Question

4.
Which of the following is a null set?
(1 ){X:X belongs to Z;-1/2<x<9/2}
(2) {X:X belongs to N,X-4<=15}
(3) {X:X belongs to N;x<5&x>8}
(4) {X:Xbelongs to N;x²=40}​

Answer 1

Answer:

x:x belongs to Nx2=40

Step-by-step explanation:

correct answer