જો $\lim_{x \to 0} \frac{45^x - 9^x - 5^x + 1}{(k^x - 1)(3^x - 1)} = 2$ હોય, તો $k$ નું મૂલ્ય છે...

  • A
    $45$
  • B
    $9$
  • C
    $5$
  • D
    $3$

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જો $\lim _{n \rightarrow \infty} x_n$ અસ્તિત્વ ધરાવે છે અને તે શાંત છે,$x_1=2$,$x_{n+1}=\frac{a+b x_n}{b+c x_n}$ દરેક $n \in N$ માટે,અને $c > b > a > 0$ હોય,તો $\lim _{n \rightarrow \infty} x_n =$

$\mathop {\lim }\limits_{x \to \infty } \frac{{\sqrt {{x^2} + {a^2}} - \sqrt {{x^2} + {b^2}} }}{{\sqrt {{x^2} + {c^2}} - \sqrt {{x^2} + {d^2}} }} = $

$\lim _{x \rightarrow \infty} (\sqrt{x^2+5x-7}-x) = $

$\lim _{x \rightarrow 0} \frac{e^{x^2}-\cos 3 x}{\sin x \log (1+2 x)}=$

$\lim _{x \rightarrow 0} \frac{63^x-9^x-7^x+1}{\sqrt{2}-\sqrt{1+\cos x}}=\ldots$.

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