$b > 3$ ની કઈ કિંમત માટે $12 \int \limits_{3}^{b} \frac{1}{(x^{2}-1)(x^{2}-4)} dx = \log _{e}(\frac{49}{40})$ થાય?

  • A
    $6$
  • B
    $3$
  • C
    $5$
  • D
    $9$

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સાબિત કરો કે $\int_{0}^{\frac{\pi}{4}} 2 \tan^{3} x \, dx = 1 - \log 2$.

નિશ્ચિત સંકલન $\int_{0}^{\frac{\pi}{4}} \frac{\sin x+\cos x}{9+16 \sin 2 x} d x$ ની કિંમત શોધો.

Difficult
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$\int_0^2 \sqrt{\frac{2 + x}{2 - x}} \,dx = $

જો $\int_{0}^{\sqrt{3}} \frac{15 x^{3}}{\sqrt{1+x^{2}+\sqrt{(1+x^{2})^{3}}}} dx = \alpha \sqrt{2} + \beta \sqrt{3}$,જ્યાં $\alpha, \beta$ પૂર્ણાંકો છે,તો $\alpha + \beta$ ની કિંમત શોધો.

જો $f(x) = \frac{|\log x|}{x^2}$ હોય,તો $\int_{1/e}^e f(x) dx =$

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