In loving memory of my son, Ali Murtaza.
This is the Urdu version of the lecture titled 'i and Imaginary numbers' posted in the Algebra section of KhanAcademy.org. The url of the original video on Khan Academy is given below:
http://www.khanacademy.org/v/i-and-imaginary-numbers?p=Algebra
The Urdu dubbing is done for students attending either English or Urdu medium schools. The English terminology is used for Mathematical concepts with Urdu used for description and explanations. The dubbed video will be most useful for students from Pakistan.
