Permutations and Combinations
Choosing a team and ordering its batting line are different counting problems with different answers. Chapter 6, Permutations and Combinations, of the NCERT Mathematics textbook for Class 11 separates arrangement from selection. You will apply the fundamental principle of counting, use factorial notation with its properties, count permutations with and without repetition and with restrictions, and count combinations for committees and hands. Each formula is introduced through small cases you can list and check.
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