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