જો $\int \frac{(x-1) dx}{(x+1) \sqrt{x^3+x^2+x}} = f(x) + C$ હોય, તો $f(1) =$

  • A
    $\frac{\pi}{4}$
  • B
    $\frac{2 \pi}{5}$
  • C
    $\frac{2 \pi}{3}$
  • D
    $\frac{5 \pi}{6}$

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જો $\int \frac{dx}{x \sqrt{1-x^3}} = k \log \left(\frac{\sqrt{1-x^3}-1}{\sqrt{1-x^3}+1}\right) + c$,(જ્યાં $c$ એ સંકલનનો અચળાંક છે),તો $k$ ની કિંમત શોધો.

$\int \frac{\sin x \cdot \cos x}{\sin ^{4} x+\cos ^{4} x} d x=$

વિધેય $\frac{\cos x-\sin x}{1+\sin 2 x}$ નું સંકલન શોધો.

ધારો કે $f(x) = \frac{x}{(1 + x^7)^{1/7}}$ અને $g(x) = (f \circ f \circ f \circ f \circ f \circ f \circ f)(x)$ છે. તો $\int x^5 g(x) dx$ ની કિંમત શોધો (જ્યાં $C$ એ સંકલનનો અચળાંક છે):

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