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 સુરેખ વિધેયો $f(x)$ અને $g(x)$ એ $\int[(3x-1) \cos x + (1-2x) \sin x] dx = f(x) \cos x + g(x) \sin x + C$ નું સમાધાન કરે,તો:

જો $\int \log \left(a^2+x^2\right) d x=h(x)+C$ હોય,તો $h(x)$ બરાબર શું થાય?

$\int \log x^2 \, dx =$ . . . . . . $+ C$.

વિધેય $(\sin^{-1} x)^2$ નું સંકલન કરો.

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જો $u = \int e^{ax} \cos bx \, dx$ અને $v = \int e^{ax} \sin bx \, dx$ હોય,તો $(a^2 + b^2)(u^2 + v^2) = $

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