$\int \frac{x^4+1}{x^6+1} dx = $

  • A
    $\tan^{-1} x - \frac{1}{3} \tan^{-1}(x^3) + c$
  • B
    $\tan^{-1} x + \frac{1}{3} \tan^{-1}(x^3) + c$
  • C
    $\tan^{-1} x - \tan^{-1}(x^3) + c$
  • D
    $\tan^{-1} x + \tan^{-1}(x^3) + c$

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$\int \sqrt{\frac{1+x}{1-x}} \, dx = $

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यदि $\int \frac{2 \cos x+3 \sin x}{4 \cos x+5 \sin x} dx = \left(\frac{23}{41}\right) x + K \log |4 \cos x+5 \sin x| + c$ है,तो $K$ का मान ज्ञात कीजिए।

$\int \tan ^{-1}\left(1-x+x^2\right) d x+\int \tan ^{-1}(x) d x+\int \tan ^{-1}(1-x) d x=$

$0 < x < 1$ के लिए,समाकलन $\int [\operatorname{Tan}^{-1}(1-x+x^2) + \operatorname{Tan}^{-1}(1-x)] dx$ का मान ज्ञात कीजिए।

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