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Class 11 Mathematics Permutations and Combinations Factorial notationEasy

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How can (9\times8\times7) be written in factorial form?

Answer and explanation

Correct answer: (\frac{9!}{6!})

(9!=9\times8\times7\times6!), so (\frac{9!}{6!}=9\times8\times7). Divide by the factorial after the last required factor.

Related tags

Factorial Notation Permutations Combinations Class 11 Easy Factorial Notation Permutations And Combinations Mathematics Class 11 Mcq

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