$\int_0^{2/3} \frac{dx}{4 + 9x^2} = $

  • A
    $\frac{\pi}{12}$
  • B
    $\frac{\pi}{24}$
  • C
    $\frac{\pi}{4}$
  • D
    $0$

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$\int_0^1 x f(x) dx = \frac{1}{3} + \frac{1}{4} \int_0^1 (f(x))^2 dx$ નું સમાધાન કરતા સતત વિધેયો $f:[0,1] \rightarrow \mathbb{R}$ ની સંખ્યા કેટલી છે?

અંતરાલ $\left[ \frac{5\pi}{4}, \frac{4\pi}{3} \right]$ પર વિધેય $F(x) = \int_{5\pi /4}^x {(3\sin u + 4\cos u)\,du} $ ની ન્યૂનતમ કિંમત શોધો.

Difficult
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$\int_{-1}^1 \frac{\cosh x}{1+e^{2 x}} d x$ ની કિંમત શોધો :

જો $I = \int_{0}^{2} e^{x^{4}}(x - \alpha) dx = 0$ હોય, તો $\alpha$ કયા અંતરાલમાં આવે છે?

જો $\int_0^a \sqrt{\frac{a-x}{x}} dx = \frac{k}{2}$ હોય,તો $k = $

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