જો $f(x) = \lim _{n \rightarrow \infty} n^2 \left(x^{\frac{1}{n}} - x^{\frac{1}{n+1}}\right), x > 0$ હોય,તો $\int x f(x) d x =$

  • A
    $\frac{x^2}{2} \log x + C$
  • B
    $\frac{x^2}{2} \log x + \frac{x^2}{4} + C$
  • C
    $\frac{x^2}{2} \log x - \frac{x^2}{4} + C$
  • D
    $-\frac{x^2}{2} \log x + \frac{x^2}{4} + C$

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જો $\frac{d}{dx}f(x) = x\cos x + \sin x$ અને $f(0) = 2$ હોય,તો $f(x) = $

જો $f(x)=1+x$ અને $g(x)=\log x$ હોય,તો $\int g(f(x)) \, dx$ ની કિંમત શોધો.

જો $\int \frac{e^{\sqrt{x}}}{\sqrt{x}} (x + \sqrt{x}) dx = e^{\sqrt{x}} [Ax + B \sqrt{x} + C] + K$ હોય,તો $A + B + C = $

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:

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