જો $\int \frac{\sin x}{3+4 \cos ^2 x} \,dx = A \tan ^{-1}(B \cos x) + C$ હોય, (જ્યાં $C$ એ સંકલનનો અચળાંક છે), તો $A+B$ ની કિંમત શોધો.

  • A
    $\frac{5}{2 \sqrt{3}}$
  • B
    $\frac{-1}{2 \sqrt{3}}$
  • C
    $\frac{-2}{\sqrt{3}}$
  • D
    $\frac{\sqrt{3}}{2}$

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