$1 + \frac{2}{1 \times 2 \times 3} + \frac{2}{3 \times 4 \times 5} + \frac{2}{5 \times 6 \times 7} + \dots$ का योग क्या है?

  • A
    $2 \ln 2$
  • B
    $\ln 2$
  • C
    $3 \ln 3$
  • D
    $3 \ln 2$

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Similar Questions

श्रेणी $\frac{1}{1 \times 2} - \frac{1}{2 \times 3} + \frac{1}{3 \times 4} - \dots \infty$ का योग क्या है?

यदि $S = \sum\limits_{n = 0}^\infty \frac{(\log x)^{2n}}{(2n)!}$ है,तो $S$ =

$\log_e \frac{1}{1 - x - x^2 + x^3}$ के विस्तार में,$x$ का गुणांक है

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

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

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