माना $I_{n} = \int_{1}^{e} x^{19}(\log |x|)^{n} dx$,जहाँ $n \in N$ है। यदि $(20) I_{10} = \alpha I_{9} + \beta I_{8}$,प्राकृत संख्याओं $\alpha$ और $\beta$ के लिए है,तो $\alpha - \beta$ का मान ..... है।

  • A
    $2$
  • B
    $1$
  • C
    $3$
  • D
    $4$

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Similar Questions

मान लीजिए $f(x) = 7 \tan^8 x + 7 \tan^6 x - 3 \tan^4 x - 3 \tan^2 x$ सभी $x \in \left(-\frac{\pi}{2}, \frac{\pi}{2}\right)$ के लिए है। तो सही व्यंजक है/हैं:
$(A) \int_0^{\pi/4} x f(x) dx = \frac{1}{12}$
$(B) \int_0^{\pi/4} f(x) dx = 0$
$(C) \int_0^{\pi/4} x f(x) dx = \frac{1}{6}$
$(D) \int_0^{\pi/4} f(x) dx = 1$

$\int_{\frac{\pi}{4}}^{\frac{5 \pi}{4}} (|\cos t| \sin t + |\sin t| \cos t) dt =$

$\int_1^3 \left[ \tan^{-1} \left( \frac{x}{x^2-1} \right) + \tan^{-1} \left( \frac{x^2-1}{x} \right) \right] dx =$

$\int_{-\pi / 2}^{\pi / 2}(2 \sin |x|+\cos |x|) d x=$

समाकल $\int_{-1}^{1} \left\{ \frac{x^{2013}}{e^{|x|}(x^{2}+\cos x)} + \frac{1}{e^{|x|}} \right\} dx$ का मान ज्ञात कीजिए।

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