Question

what is imaginary number​

Answer 1

Step-by-step explanation:

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. By definition, zero is considered to be both real and imaginary. The set of imaginary numbers is sometimes denoted using the blackboard bold letter .

Answer 2

Step-by-step explanation:

a number that is expressed in terms of the square root of a negative number (usually the square root of −1, represented by i or j ).

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