જો $0 < x < 1$ હોય,તો $\frac{3}{2} x^{2} + \frac{5}{3} x^{3} + \frac{7}{4} x^{4} + \ldots$ ની કિંમત શોધો:

  • A
    $x \left( \frac{1+x}{1-x} \right) - \log_{e}(1-x)$
  • B
    $x \left( \frac{1-x}{1+x} \right) + \log_{e}(1-x)$
  • C
    $\frac{1-x}{1+x} + \log_{e}(1-x)$
  • D
    $\frac{1+x}{1-x} + \log_{e}(1-x)$

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શ્રેણી $x \log _e a + \frac{x^3}{3!} (\log _e a)^3 + \frac{x^5}{5!} (\log _e a)^5 + \dots$ નું મૂલ્ય શું છે?

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કિંમત શોધો: $\log_e \sqrt{\frac{1+x}{1-x}}$

જો $0 < x < 1$ અને $y = \frac{1}{2} x^{2} + \frac{2}{3} x^{3} + \frac{3}{4} x^{4} + \dots$ હોય,તો $x = \frac{1}{2}$ આગળ $e^{1+y}$ ની કિંમત શું થાય?

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