Question
$\cot\Big(\text{cosec}^{-1}\frac{5}{3}+\tan^{-1}\frac{2}{3}\Big)=$
- $\frac{6}{17}$
- $\frac{3}{17}$
- $\frac{4}{17}$
- $\frac{5}{17}$
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$\text{None of these.}$