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

  • A
    $\frac{x^2}{2} + \frac{x^4}{4} + \frac{x^6}{6} + \dots \infty $
  • B
    $\frac{x^2}{1 \cdot 2} + \frac{x^4}{3 \cdot 4} + \frac{x^6}{5 \cdot 6} + \dots \infty $
  • C
    $2 \left[ \frac{x^2}{1 \cdot 2} + \frac{x^4}{3 \cdot 4} + \frac{x^6}{5 \cdot 6} + \dots \infty \right]$
  • D
    આમાંથી કોઈ નહીં

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જો $0 < y < 2^{1/3}$ અને $x(y^3 - 1) = 1$ હોય,તો $\frac{2}{x} + \frac{2}{3x^3} + \frac{2}{5x^5} + \dots$ ની કિંમત શોધો:

શ્રેણીનો સરવાળો શોધો: $\log_e \frac{4}{5} + \frac{1}{4} - \frac{1}{2} \left( \frac{1}{4} \right)^2 + \frac{1}{3} \left( \frac{1}{4} \right)^3 - \dots$

$\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 = $

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

$\frac{1}{2} + \frac{3}{2} \cdot \frac{1}{4} + \frac{5}{3} \cdot \frac{1}{8} + \frac{7}{4} \cdot \frac{1}{16} + \dots \infty = $

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