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☼ PERMUTATIONS : In the above example, 2 objects were selected from 3 objects in such a way that the order of the arrangements is important.
Now, if there were n = 10 objects and r = 3 objects were to be selected, then we …
☼ Definition of Fundamental principal of counting : If one operation can be performed in m ways and if corresponding to each of the m…
☼ Factorials : Permutation and Combination is a topic which requires use of the concept of factorials. A factorial is the number obtained by multiplying all the positive integers less than or equal to a given positive integer. T…