$\frac{1}{2} + \frac{1}{3} \cdot \frac{1}{2^3} + \frac{1}{5} \cdot \frac{1}{2^5} + \dots \infty$ નો સરવાળો કેટલો થાય?

  • A
    $\log_e \sqrt{\frac{3}{2}}$
  • B
    $\log_e \sqrt{3}$
  • C
    $\log_e \sqrt{\frac{1}{2}}$
  • D
    $\log_e 3$

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$\frac{1}{2}x^2 + \frac{2}{3}x^3 + \frac{3}{4}x^4 + \dots \infty = $

કિંમત શોધો: $\log _e(x + 1) - \log _e(x - 1) = $

$\log_{3} e - \log_{9} e + \log_{27} e - \dots$ ની કિંમત કેટલી થાય?

$\log_e [(1 + x)^{1 + x} (1 - x)^{1 - x}] = $

$\cosh^{-1} 2 = $

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