This video lecture from Functions and Limits (F.Sc. second year Mathematics) covers: Question 1-3 of exercise 1.1. In these questions we are given with some functions and we find the values of these functions at given input. In question 3 we express (i) parameter of a square as a function of its area, (ii) area of circle as a function of its circumference, (iii) volume of a cube as a function of the area of its base. 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.