If $a\,\cos 2\theta + b\,\sin 2\theta = c$ has $\alpha$ and $\beta$ as its solution, then the value of $\tan \alpha + \tan \beta $ is
If $a\,\cos 2\theta + b\,\sin 2\theta = c$ has $\alpha$ and $\beta$ as its solution, then the value of $\tan \alpha + \tan \beta $ is
- A
$\frac{{c + a}}{{2b}}$
- B
$\frac{{2b}}{{c + a}}$
- C
$\frac{{c - a}}{{2b}}$
- D
$\frac{b}{{c + a}}$
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