Vector Algebra

Let $\overrightarrow a$, $\overrightarrow b$ and $\overrightarrow c$ be three vectors such that $\overrightarrow a$ = $\overrightarrow b$ $\times$ ($\overrightarrow b$ $\times$ $\overrightarrow c$). If magnitudes of the vectors $\overrightarrow a$, $\overrightarrow b$ and $\overrightarrow c$ are $\sqrt 2$, 1 and 2 respectively and the angle between $\overrightarrow b$ and $\overrightarrow c$ is $\theta \left( {0 < \theta < {\pi \over 2}} \right)$, then the value of 1 + tan$\theta$ is equal to :