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Class 11 Mathematics Permutations and Combinations Factorial notationHard

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What is the simplified value of ( \frac{10!}{7!\cdot3!} )?

Answer and explanation

Correct answer: (120)

Writing (10!) as (10\cdot9\cdot8\cdot7!) and dividing by (3!) gives (120). Cancel common factorials first.

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

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