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Q)

Evaluate :$8!$

$\begin{array}{1 1}(A)\;40230\\(B)\;40320\\(C)\;40420\\(D)\;40530\end{array} $

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A)
Toolbox:
  • $n!=n(n-1)(n-2).....(3)(2)(1)$
$8!=8\times 7\times 6\times 5\times 4\times 3\times 2\times 1$
$\;\;\;\;=40320$
Hence (B) is the correct answer.
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