Complex numbers can be represented as points on a plane with the help of an Argand Diagram, which consists of an x and a y-axis. The x-axis is called the real axis and the y-axis is the imaginary axis. Complex numbers are assigned points on this plane in such a manner that there is a one-to-one correspondence between the set of complex numbers and the set of points on the plane; i.e., each point represents a unique complex number and each complex number is represented by a unique point.|
This is accomplished in the following manner:
- The x co-ordinate of a point represents the real part of a complex number.
- The y co-ordinate of the point represents the imaginary part of the complex number.
Thus, the complex number (x + iy) is represented on the Argand Diagram by the point (x,y).
(5 + i6): (5,6)
(6 - i5): (6,-5)
3i: (0, 3)
What are the co-ordinates of the point on the Argand Diagram which represents the complex number z = [-2(5 - i9)]?
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