Question

Consider U = {x|x is a negative real number}.


Which is an empty set?

{x|x ∈ U and x has a negative cube root}

{x|x ∈ U and x has a negative square root}

{x|x ∈ U and x is equal to the product of a positive number and –1}

{x|x ∈ U and x is equal to the sum of one negative and one positive number}

Answer 1

According to your multiple choice questions. your answer is 3rd multiple choice question. your answer is 3rd option. ok