यदि $\log (1 - x + {x^2}) = {a_1}x + {a_2}{x^2} + {a_3}{x^3} + \dots$ है,तो ${a_3} + {a_6} + {a_9} + \dots$ का मान ज्ञात कीजिए।

  • A
    $\log 2$
  • B
    $\frac{2}{3}\log 2$
  • C
    $\frac{1}{3}\log 2$
  • D
    $2\log 2$

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Similar Questions

$\log _4 2 - \log _8 2 + \log _{16} 2 - \ldots$ का मान ज्ञात कीजिए।

$\frac{1}{2}x^2 + \frac{2}{3}x^3 + \frac{3}{4}x^4 + \dots \infty = $

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

$\frac{1}{1 \cdot 2 \cdot 3} + \frac{1}{3 \cdot 4 \cdot 5} + \frac{1}{5 \cdot 6 \cdot 7} + \dots \infty = $

यदि $|a| < 1$ और $b = \sum_{k=1}^{\infty} \frac{a^k}{k}$ है,तो $a$ का मान क्या होगा?

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