ધારો કે $\alpha$ અને $\beta$ એ $5x^2 - 3x - 1 = 0$ ના બીજ છે. તો પદાવલિ $\left[ (\alpha + \beta)x - \left( \frac{\alpha^2 + \beta^2}{2} \right)x^2 + \left( \frac{\alpha^3 + \beta^3}{3} \right)x^3 - \dots \right]$ બરાબર શું થાય?

  • A
    $\ln(1 - \frac{3}{5}x - \frac{1}{5}x^2)$
  • B
    $\ln(1 + \frac{3}{5}x - \frac{1}{5}x^2)$
  • C
    $\ln(1 - \frac{3}{5}x + \frac{1}{5}x^2)$
  • D
    આપેલ પૈકી કોઈ નહીં

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Similar Questions

$\frac{1}{2} + \frac{1}{3} \cdot \frac{1}{2^3} + \frac{1}{5} \cdot \frac{1}{2^5} + \dots \infty$ નો સરવાળો કેટલો થાય?

$\log_e(1 + 3x + 2x^2)$ ના વિસ્તરણમાં $x^n$ નો સહગુણક શું છે?

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

જો $|a| < 1$ અને $b = \sum_{k=1}^{\infty} \frac{a^k}{k}$ હોય,તો $a$ ની કિંમત શું થાય?

$\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 = $

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