Which of the following is a null set?
Posted: Wed Jul 13, 2022 8:09 pm
a) {x : x is a natural number and x2=4}
b) {x : x is a rational number and x2=2}
c) {x : x is an even prime number}
d) {x : x is name of the day of week}
b) {x : x is a rational number and x2=2}
c) {x : x is an even prime number}
d) {x : x is name of the day of week}