Maths Class 11 Chapter 5. Complex number and quadratic equation | Page 5

Let’ s plot some points on the graph.
Note: Modulus of the complex number is distance between point P( x, y) to the origin O( 0, 0)
Polar representation Let point P represent z = x + iy. Let x = r cos θ, y = r sin θ and therefore, z = r( cos θ + i sin θ). Here – π < θ ≤ π