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Class 11 Mathematics Permutations and Combinations Factorial notationExpert

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What is the simplified value of ( \frac{19!}{15!\cdot4!}\div\frac{18!}{14!\cdot4!} )?

Answer and explanation

Correct answer: ( \frac{19}{15} )

The ratio of the two terms directly becomes ( \frac{19}{15} ). Cancel factorials instead of finding large values.

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

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