This video lecture from Functions and Limits (F.Sc. second year Mathematics) covers: Question 7-9 of exercise 1.1. In these questions we show that the parametric equations represent equations of parabola, ellipse and hyperbola. We also prove some hyperbolic identities, and determine whether the given function is even or odd? 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.