This video lecture from Quadratic Equations (F.Sc. first year Mathematics) covers: The nature of roots of a quadratic equation. The discriminate from the quadratic formulae is identified and is used to characterise the nature of the roots without even having the equation solved. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.