यदि $\lim _{x \rightarrow 0}\left(\frac{1+cx}{1-cx}\right)^{1/x}=4$ है,तो $\lim _{x \rightarrow 0}\left(\frac{1+2cx}{1-2cx}\right)^{1/x}$ का मान ज्ञात कीजिए।

  • A
    $2$
  • B
    $4$
  • C
    $16$
  • D
    $64$

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