यदि $I=\int \frac{e^x}{e^{4 x}+e^{2 x}+1} \,d x$ और $J=\int \frac{e^{-x}}{e^{-4 x}+e^{-2 x}+1} \,d x$ है, तो किसी भी स्वेच्छ अचर $c$ के लिए, $J-I$ का मान क्या होगा?

  • A
    $\frac{1}{2} \log \left|\left(\frac{e^{4 x}-e^{2 x}+1}{e^{4 x}+e^{2 x}+1}\right)\right|+c$
  • B
    $\frac{1}{2} \log \left|\left(\frac{e^{2 x}+e^x+1}{e^{2 x}-e^x+1}\right)\right|+c$
  • C
    $\frac{1}{2} \log \left|\left(\frac{e^{2 x}-e^x+1}{e^{2 x}+e^x+1}\right)\right|+c$
  • D
    $\frac{1}{2} \log \left|\left(\frac{e^{4 x}+e^{2 x}+1}{e^{4 x}-e^{2 x}+1}\right)\right|+c$

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वास्तविक संख्याओं $\alpha, \beta, \gamma$ और $\delta$ के लिए,यदि $\int \frac{\left(x^{2}-1\right)+\tan ^{-1}\left(\frac{x^{2}+1}{x}\right)}{\left(x^{4}+3 x^{2}+1\right) \tan ^{-1}\left(\frac{x^{2}+1}{x}\right)} d x =\alpha \log _{e}\left(\tan ^{-1}\left(\frac{x^{2}+1}{x}\right)\right) +\beta \tan ^{-1}\left(\frac{\gamma\left(x^{2}-1\right)}{x}\right)+\delta \tan ^{-1}\left(\frac{x^{2}+1}{x}\right)+C$ जहाँ $C$ एक स्वेच्छ अचर है,तो $10(\alpha+\beta \gamma+\delta)$ का मान ....... है।

यदि $\int \frac{1}{\cot \frac{x}{2} \cot \frac{x}{3} \cot \frac{x}{6}} d x=A \log \left|\cos \frac{x}{2}\right|+B \log \left|\cos \frac{x}{3}\right|+C \log \left|\cos \frac{x}{6}\right|+k$ है,तो $A+B+C=$

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