$\int \frac{2x}{(2x + 1)^2} dx = $

  • A
    $\frac{1}{2}\log(2x + 1) + \frac{1}{2(2x + 1)} + c$
  • B
    $\frac{1}{2}\log(2x + 1) - \frac{1}{2(2x + 1)} + c$
  • C
    $2\log(2x + 1) + \frac{1}{2(2x + 1)} + c$
  • D
    $2\log(2x + 1) - \frac{1}{2(2x + 1)} + c$

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નીચે આપેલ વિધાન $(A)$ અને કારણ $(R)$ ધ્યાનમાં લો:
વિધાન $(A)$: $\int \sqrt{x-3} \left(\sin^{-1}(\log x) + \cos^{-1}(\log x)\right) dx = \frac{\pi}{3}(x-3)^{3/2} + c$
કારણ $(R)$: $\sin^{-1}(f(x)) + \cos^{-1}(f(x)) = \frac{\pi}{2}$, જ્યાં $|f(x)| \le 1$
સાચો વિકલ્પ પસંદ કરો:

$\int {\frac{{\cot x \tan x}}{{{{\sec }^2}x - 1}}} \;dx = $

$\int \frac{1 - \tan x}{1 + \tan x} \, dx = $

$\int \frac{\cos 2x - 1}{\cos 2x + 1} dx = $

જો $f\left(\frac{x-4}{x-2}\right)=2x+1$,$x \in R-\{1, 2\}$ હોય,તો $\int f(x) dx$ ની કિંમત શોધો.

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