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Grade: 12

                        

let 1<m<n<p. the number of subsets of set a(1,2,3,... .. .,p) having m and n as least and greatest elements respectively

9 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
							

Dear student,

Permutation : Permutation means arrangement of things. The word arrangement is used, if the order of things is considered.

Combination: Combination means selection of things. The word selection is used, when the order of things has no importance.

9 years ago
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