किसी भी पूर्णांक $n \geq 2$ के लिए,यदि $I_n = \int \cot^n x \, dx$ है,तो $I_5 =$

  • A
    $\frac{-\cot^4 x}{4} + \frac{\cot^2 x}{2} + \log |\sin x| + c$
  • B
    $\frac{-\cot^4 x}{4} + \frac{\cot^2 x}{2} - \log |\sin x| + c$
  • C
    $\frac{\cot^4 x}{4} + \frac{\cot^2 x}{2} + \log |\cos x| + c$
  • D
    $\frac{\cot^4 x}{4} - \frac{\cot^2 x}{2} - \cot x + c$

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कथन $(A)$: यदि $I_n = \int \cot^n x \, dx$ है,तो $I_6 + I_4 = \frac{-\cot^5 x}{5}$ होगा।
कारण $(R)$: $\int \cot^n x \, dx = \frac{-\cot^{n-1} x}{n-1} - \int \cot^{n-2} x \, dx$.

यदि $\int \frac{1}{x} \sqrt{\frac{1-\sqrt{x}}{1+\sqrt{x}}} d x=2 f(x)-2 \operatorname{Sin}^{-1} \sqrt{x}+c$ है, तो $f(x)=$

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

यदि $\int\left(\frac{1}{x}+\frac{1}{x^3}\right)\left(\sqrt[23]{3 x^{-24}+x^{-26}}\right) d x =-\frac{\alpha}{3(\alpha+1)}\left(3 x^\beta+x^\gamma\right)^{\frac{\alpha+1}{\alpha}}+C, x>0,$ $(\alpha, \beta, \gamma \in Z)$,जहाँ $C$ समाकलन का स्थिरांक है,तो $\alpha+\beta+\gamma$ का मान . . . . . . है।

$\int \frac{dx}{\sqrt{(x-1)(x-2)}}=$

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