योग $\left({ }^{n} C_{1}\right)^{2}+\left({ }^{n} C_{2}\right)^{2}+\left({ }^{n} C_{3}\right)^{2}+\ldots+\left({ }^{n} C_{n}\right)^{2}$ का मान है

  • A
    $\left({ }^{2 n} C_{n}\right)^{2}$
  • B
    ${ }^{2 n} C_{n}$
  • C
    ${ }^{2 n} C_{n}+1$
  • D
    ${ }^{2 n} C_{n}-1$

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