જો $\int \frac{7 x^8+8 x^7}{\left(1+x+x^8\right)^2} d x=f(x)+c$ હોય, તો $f(x)$ ની કિંમત શોધો.

  • A
    $\frac{x^8}{1+x+x^8}$
  • B
    $28 \log \left(1+x+x^8\right)$
  • C
    $\frac{1}{1+x+x^8}$
  • D
    $\frac{-1}{1+x+x^8}$

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જો $\int \frac{d \theta}{\cos ^2 \theta(\tan 2 \theta+\sec 2 \theta)}=\lambda \tan \theta+2 \log _{e}|f(\theta)|+c$ (જ્યાં $c$ એ સંકલનનો અચળાંક છે),તો ક્રમયુક્ત જોડ $(\lambda, |f(\theta)|)$ બરાબર શું થાય?

જો $\int \frac{1}{x} \sqrt{\frac{1-x}{1+x}} dx = g(x) + c$ અને $g(1) = 0$ હોય,તો $g\left(\frac{1}{2}\right)$ ની કિંમત શોધો.

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

જો $\int(\sqrt{\operatorname{cosec} x+1}) d x=k \tan ^{-1}(f(x))+c$ હોય, તો $\frac{1}{k} f\left(\frac{\pi}{6}\right)=$

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