In this video i taught q.10 of exercise 7.3 from chapter:7 Permutations and Combinations ncert maths class 11 cbse #permutations_and_combinations #mathsclass11 #factorial maths class 11 chapter:7 Permutations and Combinations maths class 11 ch 7 exercise 7.3 q.10 maths 11 ch 7 ex.7.3 q.10 maths 11 ex.7.3 q.10 permutation formula