કિંમત શોધો: $\log _e(x + 1) - \log _e(x - 1) = $

  • A
    $2\left[ {x + \frac{{{x^3}}}{3} + \frac{{{x^5}}}{5} + \dots \infty } \right]$
  • B
    $\left[ {x + \frac{{{x^3}}}{3} + \frac{{{x^5}}}{5} + \dots \infty } \right]$
  • C
    $2\left[ {\frac{1}{x} + \frac{1}{{3{x^3}}} + \frac{1}{{5{x^5}}} + \dots \infty } \right]$
  • D
    $\left[ {\frac{1}{x} + \frac{1}{{3{x^3}}} + \frac{1}{{5{x^5}}} + \dots \infty } \right]$

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જો $\alpha, \beta$ એ સમીકરણ $x^2 - px + q = 0$ ના બીજ હોય,તો $\log_e(1 + px + qx^2) = $

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

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