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JEE Main 2026 Preparation: Question Papers, Solutions, Mock Tests & Strategy Unacademy » JEE Study Material » Mathematics » Conjugation of Complex Numbers

Conjugation of Complex Numbers

Learn how conjugation of complex numbers, including definition, function, expression and more, with our study material notes on conjugation of complex numbers

Table of Content
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The conjugation of complex numbers is defined as a complex number whose real and imaginary parts are equal.

The definition of a complex conjugate is the result of a complex operation, such as multiplication or division, on another complex number. A complex conjugate is an imaginary number obtained by multiplying the real and imaginary parts.

The conjugates of some complex numbers are themselves quite interesting. For example, the conjugate of -1 is 1.

A complex conjugate is a number resulting from multiplying a complex number by its conjugate. The complex conjugate of 5 is 5+i. A complex conjugate can be represented as a real number, an imaginary number, or a quaternion.

An expression with two real and two imaginary parts can also denote a complex conjugate. The original value is represented by the fundamental part of the statement, while the imaginary component represents its inverse or conjugate value.

The Centrality of Complex Numbers

Complex numbers can be written as a+bi, where a and b are real numbers.

The conjugate of a complex number is simply the complex number with its real part replaced by its imaginary part. A complex number can represent any physical quantity that has magnitude and direction.

The conjugation of complex numbers is a number that can be represented as the sum of two real numbers. The complex conjugate of a complex number is the value obtained by multiplying the real and imaginary parts of the original number and then adding their conjugate. A complex number can be represented as a point on a plane called cartesian plane. The point is defined by two coordinates, called real and imaginary parts.

Understanding a conjugate

A complex conjugate is a complex number whose square root is equal to its conjugate. A complex number is a number that has two parts, the real part and the imaginary part. A square root of a complex number is an equation of the form “a”*” a”. The square root of “3+4i” would be “3”*”3″. 

The conjugation of complex numbers results from an operation that converts a complex number into its conjugate. A complex number, such as 3+2i or 4-3i, has real and imaginary components. A complex number’s conjugate is obtained by multiplying its real and imaginary components by -1 and adding I to each. 

A conjugate is a complex number that shares the original complex number’s real and imaginary portions—multiplying a complex number by its conjugate yields a conjugate. The conjugate of 5 is, for example, -5.

A complex conjugate’s function

In this section, we will learn about the complex conjugate of a complex number and how to find it.

The conjugation of complex numbers is the conjugation of a complex number where you replace all the real parts with their corresponding imaginary parts. For example, if c = (1+i) then c’ = (1-i).

The process of finding the conjugate of a given complex number starts by multiplying both sides of the equation by i and then adding them together to get rid of i:

c’ = (1+i) + (1-i) = 2+2i.

Defining a Complex Conjugate 

A complex number is a mathematical expression that describes a point in the complex plane. The complex conjugate of a complex number is its conjugate, also called the reciprocal function.

The complex conjugate of a complex number can be defined as the function that inputs a real number and returns its imaginary part. A complex conjugate is a complex number equal to the real part of its conjugate. For example, if we have the conjugate of 3+4i, then it is equal to -3+4i.

A complex conjugate can be used in different ways, including solving equations and finding the roots of a function. For example, if we want to find the root of x2 – 2x + 7, then we will use the following formula:

To solve this equation, take the square root of both sides and get rid of i by dividing both sides by (1-i).

A complex conjugate is a complex number that has an equal and opposite real number. A complex conjugate is often used to represent the conjugate of a polar equation. It can also be used to represent the conjugate of a complex function. You must remember this as part of your study material notes on conjugation of complex numbers. 

The Expression of Conjugation of Complex Numbers

A complex conjugate is a number that can be written as the product of a real number and a complex number.

A real number is a non-complex, non-imaginary number. An imaginary number is any real or complex number that can be expressed as the square root of a negative or multiplied by i.

The properties of the complex conjugate are:

  1. It is equal to the product of its conjugate and itself;
  2. Its absolute value is equal to the absolute value of its conjugate;
  3. Its modulus is equal to the modulus of its conjugate;
  4. Its argument squared equals (the square root of) its argument plus one.

Conclusion

As part of your study material notes on conjugation of complex numbers, you must note that a complex number is a number that is made up of two parts – a real part and an imaginary part. The real part represents the number’s value without the imaginary part. 

The conjugation of complex numbers is used in mathematics to study non-real numbers. The conjugate of a complex number is the complex number with its real part replaced by its imaginary part and vice versa.

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