Question

A = { x | x ∈ I, x ∉ W } Write the following sets in roster form​

Answer 1

A = { x | x ∈ I, x ∉ W }

We have to read this set builder form in the following way-

A is a set of X such that X belongs to Imaginary numbers but not belongs to whole number.

Imaginary number definition: An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by its property i2 = −1. The square of an imaginary number bi is −b2. For example, 5i is an imaginary number, and its square is −25

Whole number definition: numbers from 0 to

-∞ are called whole numbers.

The following set in Roster form is - A= { -3,-4,-5,-9......}

Thank you. Hope you like my answer.