Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 6.2
Last updated at May 29, 2023 by Teachoo
Ex 6.2, 3 - Chapter 7 Class 11 Permutations and Combinations - NCERT Compute 8! / 6! × 2! 8! / 6! × 2! = 8 × 7 × 6! / 6! × (2 × 1) = 8 × 7/ 2 = 4 × 7 = 28