B={y | y is an integer and -5 < y < -2}

b = { -4, -3 }

Step-by-step explanation:

was that the question?

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.