જો $\lim _{x \rightarrow 0}\left(\frac{1+cx}{1-cx}\right)^{1/x}=4$ હોય, તો $\lim _{x \rightarrow 0}\left(\frac{1+2cx}{1-2cx}\right)^{1/x}$ ની કિંમત શોધો.

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

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$\lim _{x \rightarrow 0} \frac{x^2 \log (\cos x)}{\log (1+x^2)} = $

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જો $f(x) = \begin{cases} x^2-1, & 0 < x < 2 \\ 2x+3, & 2 \leq x < 3 \end{cases}$ હોય,તો તે દ્વિઘાત સમીકરણ શોધો જેના બીજ $\lim_{x \rightarrow 2^{-}} f(x)$ અને $\lim_{x \rightarrow 2^{+}} f(x)$ હોય.

$\lim _{x \rightarrow 0} \frac{15^{x}-5^{x}-3^{x}+1}{1-\cos 2 x}$ ની કિંમત શોધો.

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