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

  • A
    $2 \log_e 2 - 2$
  • B
    $2 - \log_e 2$
  • C
    $2 \log_e 4$
  • D
    $\log_e 4$

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Similar Questions

यदि $\tanh ^{-1} x = a \log \left(\frac{1+x}{1-x}\right)$, $|x| < 1$ है, तो $a$ का मान ज्ञात कीजिए।

$\frac{1}{n^2} + \frac{1}{2n^4} + \frac{1}{3n^6} + \dots \infty = $

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

$\log_e \left( 1 + ax^2 + a^2 + \frac{a}{x^2} \right)$ का मान क्या है?

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?

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