## 1. Complex Number :

2. Integral Power of Iota (i) :

3. Real and Imaginary Parts of a Complex Number :

4. Imaginary Number :

5. Algebraic operation with Complex Number :

6. Equality of Two Complex Number :

7. Conjugate of a Complex Number :

8. Modulus of a Complex Number :

Properties of Modulus :

9. Argument or amplitude of a Complex Number :

Properties of Arguments :

10. Principle value of argument of a complex number :

11. Polar or Trigonometrical form of a Complex Number :

12. Square root of a Complex Number :

13. Cube roots of Unity :

14. Logarithm of Complex Number :

15. Eulerian Representation :

16. Product of the nth roots of Unity :

17. Section Formula :

18. Some Important geometrical Properties :

19. Dot and Cross Product :

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