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 combinations NCERT Exercise 7.4 Question 1. If , find Question 2. Determine n if(i). (ii). Question 3. How many chords can be …