0 -1 Let $$ u=\left\begin{array}r} -11 11 1 \end{array} ight), v=\left|\begin{array}r} 21 \end{array} ight] \text { and } w=\left\begin{array}1} 1 311 2 \end{array} ight) $$ Then $$ u \cdot(w \times v) $$ Consider the points $P(1,3,-3), QC0,1,3), R(-2,-3,-2)$ and let $A$ be the area of triangle $P Q R$. Select the correct interval for $A$. $A