Question
Find $\overrightarrow{\text{a}}.(\overrightarrow{\text{b}}\times\overrightarrow{\text{c}}) , \text{ if } \overrightarrow{\text{a}} = 2\hat{\text{i}} + \hat{\text{j}} + 3 \hat{\text{k}} , \overrightarrow{\text{b}} = - \hat{\text{i}} + 2 \hat{\text{j} + \hat{\text{k}}} \text{ and } \overrightarrow{\text{c}} = 3 \hat{\text{i}} + \hat{\text{j}} + 2 \hat{\text{k}}.$