This video lecture from Limits and Functions (F.Sc. second year Mathematics) covers: Introduction (part 3) of chapter 1. This includes the detailed discussion on different theorems of functions (i) limit on sum of two functions (ii) limit on difference of two functions (iii) limit on function multiplied by any constant (iv) limit on product of two functions (v) limit on ratio of two functions. 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.