જો $f(x) = \int \frac{5x^{8} + 7x^{6}}{(x^{2} + 1 + 2x^{7})^{2}} dx$,$(x \geq 0)$,$f(0) = 0$ અને $f(1) = \frac{1}{K}$ હોય,તો $K$ ની કિંમત શોધો.

  • A
    $1$
  • B
    $2$
  • C
    $4$
  • D
    $6$

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$\int \frac{1 + \log x}{x} dx$ ની કિંમત શોધવા માટે,યોગ્ય આદેશ (substitution) કયો છે?

$\int \frac{\sec x}{\sqrt{\sin (2 x + \theta) + \sin \theta}} d x =$

જો $\int \frac{\log \left(t+\sqrt{1+t^2}\right)}{\sqrt{1+t^2}} dt=\frac{1}{2}(g(t))^2+c$ જ્યાં $c$ એ સંકલનનો અચળાંક છે,તો $g(2)$ ની કિંમત શોધો.

$\int \frac{e^{\tan^{-1} x}}{1 + x^2} dx = $

જો ${I_1} = \int_e^{{e^2}} \frac{dx}{\log x}$ અને ${I_2} = \int_1^2 \frac{e^x}{x} dx$ હોય,તો

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