જો $\int(1+x) \log \left(1+x^2\right) d x=\left(x+\frac{x^2}{2}+\frac{1}{2}\right) \log \left(1+x^2\right)+g(x)+C$ હોય,તો $g(x)=$

  • A
    $-2 x-\frac{x^2}{2}+2 \tan ^{-1} x$
  • B
    $2 \tan ^{-1} x+\frac{x^2}{2}+\frac{x^3}{3}$
  • C
    $2 \tan ^{-1} x-\frac{x^2}{2}+3 x$
  • D
    $2 \tan ^{-1} x+3 x+\frac{x^3}{2}$

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$\int {\frac{{{x^2} - 1}}{{{x^4} + {x^2} + 1}}} \,dx$ ની કિંમત શોધો.

જો $I=\int \frac{\sin x+\sin ^3 x}{\cos 2 x} \,d x=P \cos x+Q \log \left|\frac{\sqrt{2} \cos x-1}{\sqrt{2} \cos x+1}\right|+c,$ (જ્યાં $c$ એ સંકલનનો અચળાંક છે),તો $P$ અને $Q$ ની કિંમતો અનુક્રમે શું થાય?

આપેલ છે કે $\int_0^\infty \frac{x^2 \, dx}{(x^2 + a^2)(x^2 + b^2)(x^2 + c^2)} = \frac{\pi}{2(a + b)(b + c)(c + a)}$,તો $\int_0^\infty \frac{x^2 \, dx}{(x^2 + 4)(x^2 + 9)}$ ની કિંમત શોધો.

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$\int \frac{4 e^{x}+6 e^{-x}}{9 e^{x}-4 e^{-x}} d x=A x+B \log \left|9 e^{2 x}-4\right|+c$,હોય તો (જ્યાં $c$ એ સંકલનનો અચળાંક છે)

જો $\int f(x) \cos x \, dx = \frac{1}{2} [f(x)]^2 + C$ અને $f(0) = 0$ હોય, તો $f'(0) = $

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