જો $\int \frac{\sin 2 x}{(a+b \cos x)^{2}} d x=\alpha\left[\log _{e}|a+b \cos x|+\frac{a}{a+b \cos x}\right]+c$ હોય, તો $\alpha=$

  • A
    $\frac{2}{b^{2}}$
  • B
    $\frac{2}{a^{2}}$
  • C
    $-\frac{2}{b^{2}}$
  • D
    $-\frac{2}{a^{2}}$

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જો $f'(x) = \frac{(\sqrt{x}+1)e^{\sqrt{x}}}{\sqrt{x}}$ અને $f(0) = e$ હોય, તો $f(1) = \dots$

જો $\int \frac{dx}{5 + 4\cos x} = \lambda \tan^{-1} \left( m \tan \frac{x}{2} \right) + C$ હોય,તો:

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