Question

Let x denote a real number. Find out the INCORRECT statement.

• A. S = {x : x > 3} represents the set of all real numbers greater than 3
• B. S = {x : x${}^2$ < 0} represents the empty set.
• C. S = {x : x $ϵ$ A and x $ϵ$ B} represents the union of set A and set B
• D. S = {x : a < x < b} represents the set of all real numbers between a and b, where a and b are real numbers.

Answer 1

The correct option is C S = {x : x $ϵ$ A and x $ϵ$ B} represents the union of set A and set B

Option (c) S = { x : x $ϵ$ A and x $ϵ$ B} represents the intersection of set A and set B.