$\frac{1}{2 \cdot 3} + \frac{1}{4 \cdot 5} + \frac{1}{6 \cdot 7} + \frac{1}{8 \cdot 9} + \dots$ का मान ज्ञात कीजिए।

  • A
    $\log \left(\frac{2}{e}\right)$
  • B
    $\log \left(\frac{e}{2}\right)$
  • C
    $\log (2e)$
  • D
    $e - 1$

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Similar Questions

$1 + \frac{(\log_e n)^2}{2!} + \frac{(\log_e n)^4}{4!} + \dots = $

श्रेणी $x \log _e a + \frac{x^3}{3!} (\log _e a)^3 + \frac{x^5}{5!} (\log _e a)^5 + \dots$ का मान क्या है?

$1 + \left( \frac{1}{2} + \frac{1}{3} \right) \frac{1}{4} + \left( \frac{1}{4} + \frac{1}{5} \right) \frac{1}{4^2} + \left( \frac{1}{6} + \frac{1}{7} \right) \frac{1}{4^3} + \dots \infty = $

$\frac{m - n}{m + n} + \frac{1}{3}\left( \frac{m - n}{m + n} \right)^3 + \frac{1}{5}\left( \frac{m - n}{m + n} \right)^5 + \dots \infty = $

यदि $-\frac{\pi}{2} < \theta < \frac{\pi}{2}$ है,तो $\log \left(\tan \left(\frac{\pi}{4}+\frac{\theta}{2}\right)\right)=$

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