જો $\int x^3 \sin 3x \, dx = f(x) \cos 3x + g(x) \sin 3x + c$ હોય, તો $27(f(x) + x g(x)) =$

  • A
    $18x^3 + 4x$
  • B
    $8x$
  • C
    $4x$
  • D
    $18x^3 + 8x$

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જો $f(x) = \frac{1}{\log x}$ અને $g(x) = \frac{1}{(\log x)^2}$ હોય,તો સંકલન $\int \{f(x) - g(x)\} dx$ ની કિંમત શોધો. (જ્યાં $C$ એ સંકલનનો અચળાંક છે.)

$\int \sin \sqrt{x} \, dx$ નું મૂલ્ય કેટલું થાય?

જો $I = \int \frac{x^2 \, dx}{(x \sin x + \cos x)^2} = f(x) + \tan x + c$ હોય, તો $f(x)$ શું છે?

$\int \tan^{-1} \left( \frac{2x}{1 - x^2} \right) dx = $

$\int (\log x)^3 x^5 dx = $

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