$\frac{2}{1} \cdot \frac{1}{3} + \frac{3}{2} \cdot \frac{1}{9} + \frac{4}{3} \cdot \frac{1}{27} + \frac{5}{4} \cdot \frac{1}{81} + \dots \infty = $

  • A
    $\frac{1}{2} - \log_e \frac{2}{3}$
  • B
    $-\log_e \frac{2}{3}$
  • C
    $\frac{1}{2} + \log_e \left( \frac{2}{3} \right)$
  • D
    આમાંથી કોઈ નહીં

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Similar Questions

$\frac{1}{2} - \frac{1}{2 \cdot 2^2} + \frac{1}{3 \cdot 2^3} - \frac{1}{4 \cdot 2^4} + \ldots$ ની કિંમત શોધો.

જો $P = 1 + \frac{1}{2 \times 2} + \frac{1}{3 \times 2^{2}} + \dots$ અને $Q = \frac{1}{1 \times 2} + \frac{1}{3 \times 4} + \frac{1}{5 \times 6} + \dots$ હોય, તો

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

$1 + \frac{2}{3} - \frac{2}{4} + \frac{2}{5} - \dots \infty = $

$|x| < 1$ માટે,$x$ ની ચડતી ઘાતમાં $\log(1+x+x^2)$ ના વિસ્તરણમાં $x^3$ નો સહગુણક શું છે?

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