Question

what is complex number?​

Answer 1

Answer:

In mathematics, 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 symbol called the imaginary unit, and satisfying the equation i² = -1. Because no "real" number satisfies this equation, i was called an imaginary number by René Descartes

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Answer 2

Step-by-step explanation:

Complex numbers are the numbers that are expressed in the form of a+ib where, a,b are real numbers and ‘i’ is an imaginary number called “iota”. The value of i = (√-1). For example, 2+3i is a complex number, where 2 is a real number (Re) and 3i is an imaginary number (Im).

Examples of complex numbers:

1 + j

-13 – 3i

0.89 + 1.2 i

√5 + √2i