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Class 11 Mathematics Permutations and Combinations Factorial notationEasy

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Which form is equal to (7\times6\times5)?

Answer and explanation

Correct answer: (\frac{7!}{4!})

(7!=7\times6\times5\times4!), so (\frac{7!}{4!}=7\times6\times5). Choose the denominator according to the remaining factors.

Related tags

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

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