Lecture 4 Permutations and Combinations

"Pain is temporary. Quitting lasts forever." – Lance Armstrong Lecture - 4 Chapter 7 Permutations and Combinations Meaning of Combination, how combination is different from permutations, derivation of rule for combinations through permutations, Shortcuts and special cases of combinationsNCERT Exercise 7.4Question 1. If , find Question 2. Determine n if(i). (ii). Question 3. How many chords can be drawn through …