$\int {x\sqrt {\frac{{1 - {x^2}}}{{1 + {x^2}}}} } \;dx = $

  • A
    $\frac{1}{2}[{\sin ^{ - 1}}({x^2}) + \sqrt {1 - {x^4}} ] + c$
  • B
    $\frac{1}{2}[{\sin ^{ - 1}}({x^2}) + \sqrt {1 - {x^2}} ] + c$
  • C
    ${\sin ^{ - 1}}({x^2}) + \sqrt {1 - {x^4}} + c$
  • D
    ${\sin ^{ - 1}}({x^2}) + \sqrt {1 - {x^2}} + c$

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ધારો કે $f(x) = x$, $f_1(x) = f(\log x)$, $f_2(x) = f_1(\log x)$, $f_3(x) = f_2(\log x) \dots$ વગેરે. તો $\int \frac{1}{f(x) f_1(x) f_2(x) \dots f_{2026}(x)} dx = \dots$

$\int \frac{\sin x+\sin ^3 x}{\cos 2 x} \,d x=A \cos x+B \log |f(x)|+c$ (જ્યાં $c$ એ સંકલનનો અચળાંક છે). તો $A, B$ અને $f(x)$ ની કિંમતો શોધો:

જો $f(x) = \int \left[ \tan^2 x + \cot^2 x + \frac{4(\sin^3 x + \cos^3 x)}{\sin^2 2x} \right] dx$ અને $f\left(\frac{\pi}{4}\right) = 0$ હોય, તો $3 \left[ f\left(\frac{\pi}{6}\right) + 2 \right] = $

$\int {\sqrt {{x^2} + {a^2}} \,dx} $ ની કિંમત શોધો.

$\int \frac{d x}{(x-2) \sqrt{x^2-3 x+5}} =$

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