समाकल का मूल्यांकन कीजिए: $\int \frac{2x}{4 - 3x - x^2} dx$

  • A
    $\frac{8}{5} \log |4 + x| - \frac{2}{5} \log |1 - x| + c$
  • B
    $2 \log |4 + x| + \frac{2}{5} \log |1 - x| + c$
  • C
    $-\frac{8}{5} \log |4 + x| - \frac{2}{5} \log |1 - x| + c$
  • D
    $-\frac{8}{5} \log |4 + x| + \frac{2}{5} \log |1 - x| + c$

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यदि $\int {\frac{{2x + 3}}{{(x - 1)({x^2} + 1)}}dx = {{\log }_e}\left\{ {{{(x - 1)}^{\frac{5}{2}}}{{({x^2} + 1)}^a}} \right\}} - \frac{1}{2}{\tan ^{ - 1}}x + A$,जहाँ $A$ एक स्वैच्छिक स्थिरांक है,तो $a$ का मान ज्ञात कीजिए।

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यदि $\int {\frac{{2{x^2} + 3}}{{({x^2} - 1)({x^2} + 4)}}dx = a\log \left( {\frac{{x - 1}}{{x + 1}}} \right) + b\tan ^{ - 1}\frac{x}{2} + c}$ है,तो $a$ और $b$ के मान हैं:

$\int \frac{dx}{(x + 1)^2 (x^2 + 1)} =$

मान लीजिए $f(x) = \int \frac{2x}{(x^2+1)(x^2+3)} dx$. यदि $f(3) = \frac{1}{2}(\log_e 5 - \log_e 6)$ है,तो $f(4)$ का मान ज्ञात कीजिए।

फलन का समाकलन कीजिए: $\frac{x^{2}+x+1}{(x+1)^{2}(x+2)}$

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