If \({\rm{p}} = \tan \left( { - \frac{{11{\rm{\pi }}}}{6}} \right),{\rm{\;q}} = \tan \left( {\frac{{21{\rm{\pi }}}}{4}} \right)\) and \({\rm{r}} = \cot \left( {\frac{{283{\rm{\pi }}}}{6}} \right)\), then which of the following is/are correct?

1. The value of p × r is 2.

2. p, q and r are in G.P.

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