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Find the value of: 8!+5(4!)4!-12 - Mathematics and Statistics

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Question

Find the value of: `(8! + 5(4!))/(4! - 12)`

Sum

Solution

`(8! + 5(4!))/(4! - 12)`

= `(8! + 5!)/(4xx3xx2-12)`

= `(8 xx 7 xx 6 xx 5! + 5!)/(4xx3xx(2-1))`

= `(5!(8xx7xx6+1))/(4xx3)`

= `(5xx4xx3xx2xx1(336+1))/(4xx3)`

= 5 × 2 × 337

= 3370

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Concept of Factorial Function
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Chapter 6: Permutations and Combinations - Exercise 6.2 [Page 76]

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Balbharati Mathematics and Statistics 2 (Commerce) [English] 11 Standard Maharashtra State Board
Chapter 6 Permutations and Combinations
Exercise 6.2 | Q 13. (i) | Page 76
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