MCQ
The value of $ 2^\text{n}\big[1·3· 5…(2\text{n}-3)2\text{n}-1\big)$ is:
  • $\frac{(2\text{n} )!}{\text{n!}}$
  • B
    $\frac{(2\text{n})!}{2^\text{n}}$
  • C
    $\frac{\text{n}!}{( 2\text{n})!}$
  • D
    $\text{None of these}$

Answer

Correct option: A.
$\frac{(2\text{n} )!}{\text{n!}}$

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