સંકલન $\int_{0}^{1} x \cot^{-1}(1 - x^2 + x^4) dx$ નું મૂલ્ય શું છે?

  • A
    $\frac{\pi}{4} - \frac{1}{2} \log_e 2$
  • B
    $\frac{\pi}{2} - \log_e 2$
  • C
    $\frac{\pi}{2} - \frac{1}{2} \log_e 2$
  • D
    $\frac{\pi}{4} - \log_e 2$

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ધારો કે $f(x) = \frac{\sin x}{x}$,તો $\int_{0}^{\frac{\pi}{2}} f(x) f\left(\frac{\pi}{2} - x\right) dx =$

$\left|\frac{120}{\pi^3} \int_0^\pi \frac{x^2 \sin x \cos x}{\sin^4 x + \cos^4 x} dx\right|$ ની કિંમત શોધો.

$\int_0^{\pi / 2} \frac{\sin ^3 x \cos x \, dx}{\sin ^4 x+\cos ^4 x} = ?$

વિધાન $(A): \int_{-a}^a f(x) dx = \int_0^a (f(x) + f(-x)) dx$
કારણ $(R): \int_a^b f(x) dx = \int_{g(a)}^{g(b)} f(g(u)) g'(u) du$
નીચેનામાંથી સાચો વિકલ્પ પસંદ કરો:

$\int_{-2}^{\pi} \frac{\sin^2 x}{[\frac{x}{\pi}] + \frac{1}{2}} \,dx$ ની કિંમત શોધો. (જ્યાં $[\cdot]$ એ મહત્તમ પૂર્ણાંક વિધેય છે.)

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