Permutation Difference

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Avani, a Commerce student, suddenly thinks about Permutation. But she can't remember what's the definition of **Permutation**. So, she asked her friends. Her friends replied, In mathematics, a permutation of a set is, loosely speaking, an arrangement of its members into a sequence or linear order, or if the set is already ordered, a rearrangement of its elements. So, her friend also said, I told

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