Question

Let x, y ∈ R, then x + iy is a non-real complex number if ______.

Options

• x = 0

• y = 0

• x ≠ 0

• y ≠ 0

Answer 1

Let x, y ∈ R, then x + iy is a non-real complex number if y ≠ 0.

Explanation:

x + yi is a non-real complex number if y ≠ 0.

If x, y ∈ R.