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Evaluate Each of the Following:8p3

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Question

Evaluate each of the following:

8P3

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Solution

8P3
 nPr =\[\frac{n!}{(n - r)!}\]

∴ 8P3 =\[= \frac{8!}{(8 - 3)!}\]

\[= \frac{8!}{5!}\]
\[= \frac{8(7)(6)(5!)}{5!}\]
\[ = 8 \times 7 \times 6 \]
\[ = 336\]
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Chapter 16: Permutations - Exercise 16.3 [Page 28]

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R.D. Sharma Mathematics [English] Class 11
Chapter 16 Permutations
Exercise 16.3 | Q 1.1 | Page 28

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