Question

4.
Which of the following set(s) is null set?
A = {x: X belongs to R, X < 5 and x = 25}
B = {x : X belongs to R, x2 < 0}
C = x: x = 2x - 3, Xe R}​

Answer 1

Answer:

x value -5 r value - 8 -5- -8

Answer 2

B is a null set Because there is no real value of x for which x^2 is negative .