$\int_0^{\frac{\pi}{4}} x \sec^2 x \, dx =$

  • A
    $\frac{\pi}{4} + \log \sqrt{2}$
  • B
    $\frac{\pi}{4} - \log \sqrt{2}$
  • C
    $1 + \log \sqrt{2}$
  • D
    $1 - \frac{1}{2} \log 2$

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સૌથી નાનો અંતરાલ $[a, b]$ કે જેથી $\int_0^1 \frac{dx}{\sqrt{1 + x^4}} \in [a, b]$ થાય,તે શોધો.

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$\int_0^{\pi /4} \tan^2 x \, dx = $

ધારો કે $[x]$ એ મહત્તમ પૂર્ણાંક વિધેય છે. તો,$\int_{-1}^{1} [x+2[x+2[x]]] dx = $

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

$\int_{a}^{b} \frac{1}{x} dx$ નું નિશ્ચિત સંકલન શોધો.

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