Maharashtra State BoardHSC Arts 11th
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Evaluate : n!r!(n-r)! for n = 12, r = 12 - Mathematics and Statistics

Sum

Evaluate : `("n"!)/("r"!("n" - "r")!)` for n = 12, r = 12

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Solution

n = 12, r = 12

∴ `("n"!)/("r"!("n" - "r")!) = (12!)/(12!(12 - 12)!)` 

= `(12!)/(12!  0!)`

= 1    ...[∵ 0! = 1]

  Is there an error in this question or solution?
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APPEARS IN

Balbharati Mathematics and Statistics 2 (Arts and Science) 11th Standard Maharashtra State Board
Chapter 3 Permutations and Combination
Exercise 3.2 | Q 4. (ii) | Page 49
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